ABOUT

Committees

Organizer-Chairperson

  • Park, Jae-Hoon

    Max Planck POSTECH/Korea Research Initiative (MPK)
    Pohang University of Science and Technology (POSTECH)

    jhp@postech.ac.kr

    • Abstract
    • CV

Program Organizer

  • Park, Jae-Hoon

    MPK & POSTECH

    jhp@postech.ac.kr

    • Abstract
    • CV
  • Kim, Yoon-Ho

    POSTECH

    yoonho@postech.ac.kr

    • Abstract
    • CV
  • Lee, Gil-Ho

    POSTECH

    lghman@postech.ac.kr

    • Abstract
    • CV
  • Suh, Junho

    POSTECH

    junhosuh@postech.ac.kr

    • Abstract
    • CV
  • Kim, Dong-Eon

    MPK & POSTECH

    jhp@postech.ac.kr

    • Abstract
    • CV
  • Jo, Moon-Ho

    IBS/POSTECH

    mhjo@postech.ac.kr

    • Abstract
    • CV
  • Song, Changyong

    MPK & POSTECH

    cysong@postech.ac.kr

    • Abstract
    • CV
  • Shin, Hoon Kyu

    NINT/POSTECH

    shinhk@postech.ac.kr

    • Abstract
    • CV

Engineered quantum materials for quantum technology

Over the past 50 years, two-dimensional (2D) electronic systems have served as a key material platform for the study of intriguing quantum phenomena in engineered material systems.
More recently, scientists have found that it is possible to fabricate atomically thin van der Waals (vdW) layered materials. In these atomically thin materials, quantum physics allows electrons to move effectively only in a 2D space. Moreover, by stacking these 2D quantum materials, it is also possible to create atomically thin vdW heterostructures with a wide range of interfacial electronic and optical properties. Novel 2D electronic systems realized in vdW atomic stacks have served as an engineered quantum materials platform for quantum technologies. In this talk, we will discuss several research initiatives aimed at realizing emergent physical phenomena that can be exploited for quantum technologies. Topics include the realization of topological superconductivity hybridizing quantum Hall and superconductivity, twist engineering of moire vdW systems, and semiconducting exciton condensations for novel optoelectronics.

Quantum Engineering of Superconducting Qubits

Superconducting qubits are coherent artificial atoms assembled from electrical circuit elements and microwave optical components. Their lithographic scalability, compatibility with microwave control, and operability at nanosecond time scales all converge to make the superconducting qubit a highly attractive candidate for the constituent logical elements of a quantum information processor. Over the past decade, spectacular improvements in the manufacturing and control of these devices have moved the superconducting qubit modality from the realm of scientific curiosity to the threshold of technical reality. In this talk, we present recent progress, challenges, and opportunities ahead in the engineering of larger scale processors based on superconducting qubits.

Quantum Computing with Ternary Logic and Beyond

Traditional models of gate-based quantum computation rely on an architecture of entangled spin-1/2 systems, each representing a quantum bit which can be placed in a superposition of “up” and “down.” Typically, physical systems, such as superconducting circuits, natively have more than two quantized levels, and it is thus possible to consider computing with ternary logical operations, or using even more levels. Such encodings promise access to a larger computational space with fewer physical elements and a shorter path to achieving quantum advantage over classical hardware, albeit at the expense of engineering coherence and control in a more complex quantum system. I will present recent experimental results on superconducting qutrits and ququarts, focusing on novel entangling gates, benchmarking methods, and quantum simulations.

International Conference on Prospective Quantum Technology Postech Signature Conferences

Quantum acoustics: Quantum mechanics with sound

Andrew N Cleland
Pritzker School of Molecular Engineering, University of Chicago, Chicago IL 60637 USA

Phonons, the quantum particles of sound waves in solids, represent the collective motion of astronomical numbers of atoms. While initially phonons served as a convenience for calculations of heat capacity, heat transport and particle scattering, recent developments in my group have shown that phonons can in fact be used as carriers of quantum information, with properties very similar to photons. In this talk I will some of the results from my group’s research, where we use superconducting qubits for the on-demand generation, storage, and detection of individual microwave-frequency phonons in an acoustic resonator; use phonons to transmit quantum states and generate quantum entanglement; demonstrate a single-phonon interferometer and a quantum information process known as “quantum erasure”; and most recently demonstrate the acoustic Hong-Ou-Mandel effect with phonons, illustrating the wave-particle duality fundamental to quantum mechanics. Interestingly, this last development points to the possible development of a phonon-based version of linear optical quantum computing, which could be called linear mechanical quantum computing.
*This work was supported by the US AFOSR, US NSF, US ARL, US DOE.

[1] K. J. Satzinger et al., “Quantum control of surface acoustic wave phonons”, Nature 563, 661–665 (2018)
[2] A. Bienfait et al., “Phonon-mediated quantum state transfer and remote qubit entanglement”, Science 364, 368-371 (2019)
[3] E. Dumur et al., “Quantum communication with itinerant surface acoustic wave phonons”, npj Quantum Information 7, 1-5 (2021)
[4] A. Bienfait et al., “Quantum erasure using surface acoustic phonons”, Phys. Rev. X 10, 021055 (2020)
[5] C. K. Hong, Z. Y. Ou and L. Mandel, “Measurement of subpicosecond time intervals between two photons by interference,” Phys. Rev. Lett. 59, 2044-2046 (1987)
[6] H. Qiao et al., “Splitting phonons: Building a platform for linear mechanical quantum computing,” Science 380, 1030-1033 (2023)

Quantum archeology: Asking quantum systems what they did to get where they are

One of the most famous tidbits of received wisdom about quantum mechanics is that one "cannot ask" how a particle got to where it was finally observed, e.g., which path of an interferometer a photon took before it reached the screen. What, then, do present observations tell us about the state of the world in the past? I will describe two experiments looking into aspects of this “quantum retrodiction."

The first experiment I will describe addresses a century-old controversy: that of the tunneling time. Since the 1930s, and more heatedly since the 1980s, the question of how long a particle spends in a classically forbidden region before being transmitted has been a subject of debate. Using Bosecondensed Rubidium atoms cooled down to a nanoKelvin, we have now measured just how long they spend inside an optical beam which acts as a “tunnel barrier” for them. I will describe these ongoing experiments, as well as proposals we are refining to study exactly what happens during the time it takes to “collapse” an atom to be in the barrier.

I will also introduce some of our more recent experiments, which revisit the common picture that when light slows down in glass, or a cloud of atoms, it is because the photons “get virtually absorbed” before being sent back along their way. We have carried out an experiment that lets us distinguish between the time spent by transmitted photons and by photons which are eventually absorbed, asking the question “how much time are atoms caused to spend in the excited state by photons which are not absorbed?”

SOME REFERENCES

[1] Measuring the time a tunnelling atom spends in the barrier, Ramón Ramos, David Spierings, Isabelle Racicot, & Aephraim M. Steinberg, Nature 583, 529 (2020).
[2] Observation of the decrease of Larmor tunneling times with lower incident energy, David C. Spierings, & Aephraim M. Steinberg, Phys. Rev. Lett. 127, 133001 (2021).
[3] Spin Rotations in a Bose-Einstein Condensate Driven by Counterflow and Spin-independent Interactions, David C. Spierings, Joseph H. Thywissen, & Aephraim M. Steinberg, condmat/2308.16069 (2023)
[3] Measuring the time atoms spend in the excited state due to a photon they do not absorb, Josiah Sinclair, Daniela Angulo, Kyle Thompson, Kent Bonsma-Fisher, Aharon Brodutch, & Aephraim M. Steinberg, PRX Quantum 3, 010314 (2022).
[4] How much time does a resonant photon spend as an atomic excitation before being transmitted?, Kyle Thompson, Kehui Li, Daniela Angulo, Vida-Michelle Nixon, Josiah Sinclair, Amal Vijayalekshmi Sivakumar, Howard M. Wiseman, & Aephraim M. Steinberg, quant-ph/2310.00432 (2023)

brief CV

Professor Aephraim Steinberg holds the rank of University Professor of Physics at the University of Toronto, and currently serves as Director of the Quantum Information Science program at the Canadian Institute for Advanced Research. He has been working on the foundations of quantum mechanics (experimental quantum optics and ultracold atoms) for over 30 years. After obtaining his B.Sc. at Yale University in 1988, working with Ed Hinds, he spent a year working with future Nobel laureate Serge Haroche at the École Normale Supérieure before moving to Berkeley to do graduate work with Ray Chiao. Completed in 1994, Steinberg’s thesis would become famous for experimentally showing that a single photon could tunnel across a quantum barrier seemingly “faster than light,” and he was awarded the American Physical Society’s 1996 prize for best doctoral thesis in atomic, molecular, or optical physics.

Professor Steinberg has since pioneered multiple applications of entangled photons and developed novel theoretical approaches to understand quantum tunneling times (the principal experimental paper from his thesis has been cited over 1,000 times, and his main, sole-authored, theory result over 300 times). Following completion of his doctorate, Professor Steinberg held two post-doctoral positions, one with Elisabeth Giacobino and Claude Fabre at the Université de Paris VI and one with Bill Phillips, another future Nobel laureate, at the National Institute of Standards and Technology. These posts allowed him to expand his research portfolio to include laser-cooled atoms as well as entangled photons. In 1996, Professor Steinberg joined the University of Toronto and subsequently won several awards, including a Polanyi Prize in 1997, a Premier’s Research Excellence Award in 1999, the CAP Herzberg Medal in 2006, the Rutherford Medal of the Royal Society of Canada in 2006, and a McLean and Steacie fellowship in 2007. Professor Steinberg has been a visiting professor at the Universität Wien, the Collège de France, the University of Queensland, Sapienza Università di Roma, and Hokkaido University; and has delivered numerous invited lectures and keynotes at around the world. He is co-founder and sometime Director of U of T’s Centre for Quantum Information & Quantum Control. He is a Fellow of the Institute of Physics (UK), the American Physical Society, Optica (formerly OSA), and the Royal Society of Canada.

Professor Steinberg’s research group is known for their accomplishments using both entangled photons and ultracold atoms to study foundational quantum physics, quantum metrology, and quantum computation. Their 2001 Nature paper on generating multiphoton entangled states for interferometry helped usher in a new wave of excitement over quantum metrology. Professor Steinberg has been at the heart of the international community studying novel paradigms of quantum measurement relevant to post-selected systems, along with their applications to precision measurement. His group’s work on quantum information and related topics has been recognized with numerous accolades, including their 2011 Science paper on measuring the trajectories of single photons being listed as Physics World’s top breakthrough of the year. Additionally, their 2014 paper in Physical Review Letters on quantum data compression made Physics World’s top-ten list for the year. More recently, Professor Steinberg has returned to the question of tunneling times, using atoms at some of the coldest temperatures ever achieved (below one-billionth of a degree above absolute zero) to directly measure how much time particles spend within classically “forbidden” regions of space. His first results on this were published in Nature, and were chosen as one of Physics World’s top-five “Quantum Highlights” for 2020. His work has excited great public interest and has been featured in an episode of Morgan Freeman’s “Through The Wormhole” as well as in a documentary about David Bohm.

Quantum Simulations with Atoms, Molecules and Photons

40 years ago, Richard Feynman outlined his vision of a quantum simulator and quantum computer for carrying out complex calculations of physical problems. Today, his dream has become a reality and a highly active field of research across different platforms ranging from ultracold atoms and ions, to superconducting qubits and photons. In my talk, I will outline how ultracold atoms in optical lattices started this vibrant and interdisciplinary research field 20 years ago and now allow probing quantum phases in- and out-ofequilibrium with fundamentally new tools and single particle resolution and control. Novel (hidden) order parameters, entanglement properties, full counting statistics or topological features can now be measured routinely and provide deep new insight into the world of correlated quantum matter. I will introduce the measurement and control techniques in these systems and delineate recent applications regarding quantum simulations of strongly correlated electronic systems.

Learning more about quantum systems via weak interactions and measurements

Information on the state of a quantum system is obtained through measurement. The projection postulate stipulates that a quantum system is irrecoverably collapsed into one of the eigenstates of the observable, resulting in maximum state disturbance. Such a measurement is known as the projection or von Neumann measurements. A more general quantum measurement based on weak interaction between the quantum system and the measuring apparatus is known as weak measurement. In this talk, I will discuss how weak interactions and measurements may be used to learn more about quantum systems than we would with projection measurements.
Unlike projection measurement, weak measurement allows minimum disturbance measurement in which maximal information gain is achieved by minimally disturbing a quantum state [1]. Moreover, weak measurement may be reversed through the process of reversal measurement. Such a weak-reversal measurement pair has an interesting application in quantum information as it can negate the effect of decoherence, even protecting entanglement from highly decoherent noisy channels [2,3]. A sequential application of weak and projection measurements leads to the weak value, which is not bounded by the eigenvalue spectrum of the associated observable. By applying multiple weak interactions sequentially, we can measure the so-called sequential weak value, and the sequential weak value of two incompatible observables is particularly important in quantum information as it can be used to directly quantify a quantum process [4]. Also, by carefully changing the interaction strengths of the sequential weak interactions, it can be shown that the emergence of a geometric phase in quantum systems is due to quantum measurement back-action; the stronger a quantum measurement, the larger the accumulated geometric phase [5]. Finally, I will introduce a novel concept of the metrological weak value. Unlike the standard weak value, the metrological weak value is valid for arbitrary interaction strengths and, therefore, can be used to measure an arbitrary interaction strength, making the metrological weak value an important tool in quantum metrology [6,7].

[1] H.-T. Lim et al., Physical Review Letters 113, 020504 (2014).
[2] Y.-S. Kim et al., Nature Physics 8, 117 (2012).
[3] J.-C. Lee et al., Nature Communications 5:4522 (2014).
[4] Y. Kim et al., Nature Communications 9:192 (2018).
[5] Y.-W. Cho et al., Nature Physics 15, 665 (2019).
[6] Y. Kim, S.-Y. Yoo, and Y.-H. Kim, Physical Review Letters 128, 040503 (2022).
[7] S.-Y. Yoo et al., in preparation (2023).

Atomically Thin Canvas for Quantum Optoelectronics

Transition metal dichalcogenide monolayers are atomically thin semiconductors that host tightly bound excitons. Recent advances in materials growth and fabrication have enabled the preparation of high-quality van der Waals heterostructures incorporating these twodimensional materials. In this presentation, I will describe our efforts to use these heterostructures as a "canvas" to realize new quantum optoelectronic devices and quantum simulators. I will discuss how we improve exciton's spectral/spatial uniformity and coherence and realize atomically thin mirrors and active "metasurfaces." I will also describe our recent observation of long-sought electron Wigner crystal phases in these heterostructures without a magnetic field or moiré potential. I will conclude my talk by explaining how we use the system to study the quantum melting of these crystals and discover new intermediate phases that have long predicted theoretically but eluded experimental characterizations. Our studies illustrate that the heterostructures made of atomically thin semiconductors are an attractive solid-state platform for exploring novel excitonic and correlate-electron phenomena.

A superconducting quantum simulator based on a photonic-bandgap metamaterial

Eunjong Kim
Assistant Professor, Department of Physics & Astronomy, Seoul National University

Experimental realizations of engineerable quantum systems provide insights into exotic quantum many-body concepts that are intractable with available classical methods. A key challenge in the development of modern quantum simulators is to maintain the level of connectivity and control during scale-up. While majority of scalable quantum simulation and computation architectures to date feature nearest-neighbor interactions limited by their local nature of coupling, long-range interacting quantum systems—exhibiting fast build-up of quantum correlation and entanglement—provide new approaches for studying quantum manybody phenomena and investigating quantum error-correction schemes in the near term. Utilization of extensible quantum bus such as a photonic waveguide provides a natural direction to investigate such many-body quantum systems where qubits interact non-locally by exchange of photons along the bus. Following this idea, here we demonstrate a 10-qubit superconducting quantum simulator with tunable long-range connectivity and individual addressing, constructed from a scalable metamaterial-based waveguide with photonic bandgaps. We study many-body quench dynamics showing a crossover between integrability and ergodicity, enabled by the various hopping range realized in our system. The widely tunable range of parameters demonstrated in our work enables study of different regimes of quantum chaos and thermalization, and more broadly, provides a novel class of accessible Hamiltonians for analog quantum simulation in superconducting circuits.

Rydberg-atom quantum simulation of magnon bound state dynamics of Heisenberg magnets

The ability to manipulate elementary interactions is a key for realistic quantum simulation of interacting many-body systems. Recent progress in systems of programmable atom arrays makes Rydberg atoms a viable physical platform for quantum simulation, whereby intrinsic van der Waals interactions and dipole-dipole interactions are employed to simulate, e.g., the quantum Ising and XY models of magnetism [1]. Here we demonstrate a new theoretical paradigm for manipulating interactions in Rydberg atom setups, where a controllable spinexchange interaction between the ground state and the Rydberg state is realized. In experiments, we utilized the engineered interaction to construct a widely tunable Heisenberg magnet, where the magnon density interaction can be made two orders of magnitude larger than the magnon hopping strength [2]. Such an extremely anisotropic regime gives rise to fundamentally new phenomena that have never been observed in the literature. As one of the most prominent examples, we experimentally demonstrate the formation of multiple magnon bound states with qualitatively distinct transport properties.

[1] M. Kim et al., "Quantum computing with Rydberg atom graphs," JKPS 82, 827 (2023).
[2] K. Kim et al., "Realization of an extremely anisotropic Heisenberg magnet in Rydberg atom arrays," arXiv: 2307.04342 (2023).

Quantum Information with Both Discrete and Continuous Variables

While discrete variables (DVs) of light such as polarizations and photon numbers are used for quantum information, one may also view the structure of a quantized field in a continuous-variable (CV) phase space. This opens diverse possibilities to encode, process, and measure quantum information. Both DVbased and CV-based approaches have long been employed to investigate nonclassical features of quantum states as well as to implement quantum information technologies. Combining both the approaches would provide powerful tools for those quests. I will discuss attempts to maximize such advantages of the two approaches particularly in view of both characterizations of nonclassical states and practical quantum information technologies, which particularly allows one to perform highly fault-tolerant quantum computing using specific types of qubit encoding.

Cavity optomechanical devices toward quantum sensing

Mechanical oscillators provide a novel platform to harness phonons as a resource for quantum technology. Their unique versatility in bridging a broad spectrum of quantum systems has raised attention to utilizing them as quantum transducers. In this talk, I describe our recent results on developing cavity optomechanical devices and their quantum sensing applications. First, our cavity optomechanical devices with superconducting niobium implement optomechanical interactions at microwave frequency to demonstrate significant enhancement in the operating temperature, magnetic fields, and microwave powers. The devices exhibit a microwave frequency comb emerging from nonlinear interactions between the microwave and mechanical oscillation. These results could lead to mechanical quantum sensors aided with precision comb-based frequency determination. Second, we explore new directions for mechanical quantum sensors with novel material systems. By employing semiconductor or topological insulator nanowires in cavity electromechanical systems, the mechanical oscillators demonstrate new functionalities such as precision microwave bolometers and quantum capacitance sensors. Our works illustrate potential routes to harness the versatility of mechanical quantum oscillators for quantum sensing and transduction in hybrid quantum systems.

Photon-based quantum technologies using quantum frequency translation

Heedeuk Shin
Department of Physics, Pohang University of Science and Technology
heedeukshin@postech.ac.kr

Photon-based quantum technologies utilize photons to manipulate and transmit quantum information, holding immense potential to revolutionize various fields such as communication, cryptography, and computing. Quantum frequency translation is a crucial technique that converts a photon's frequency while retaining its quantum properties, enabling the interfacing of different quantum systems and expanding quantum networks. This technique involves encoding quantum information in the photon's properties like polarization, phase, and path. In the optical domain, quantum frequency translation is typically achieved through nonlinear optical processes, ensuring efficient transfer of quantum information between photons of varying frequencies. Different types of quantum frequency translations exist, and recent advancements, such as Bragg-scattering fourwave mixing, have achieved a high conversion efficiency of about 93%, unlocking potential applications. Overall, these advancements have the potential to enable secure and efficient communication and computation across various fields, including healthcare, finance, and national security.

A versatile quantum playground with semiconductor quantum emitters

Solid-state quantum emitters have attracted much attention as an integrated source of photonic and spin qubits, which are basic elements for a range of quantum applications. Recent advances in the generation, manipulation, and integration of these emitters demonstrate a variety of quantum resources: bright quantum light sources, quantum memories, and spin-photon interfaces. In particular, integrating quantum emitters with photonic cavities or waveguides enables scalable quantum interactions between multiple photons and emitters. Given their high performance and scalability, quantum emitters are taking the next stages towards scalable, integrated quantum systems on photonic integrated circuits or fiber optics. Therefore, all quantum operations are efficiently possible in real-world photonic platforms. In this talk, I present recent races and future challenges in scalable, integrated quantum photonics.

Quantum simulation of nonequilibrium dynamics and measuring nonlocal order in two dimensions.

Understanding and classifying out-of-equilibrium dynamics in a closed quantum many-body system have been outstanding problems in modern physics. In this talk, we will introduce our recent experimental results on the universal coarsening dynamics in spin-1 Bose-Einstein condensate. Initially prepared polar condensate is quenched to ferromagnetic phases by microwave dressing. Right after the quench, we observe the emission of spin 1/-1 pairs due to dynamical instability, forming microdomains, which are coarse to form a larger domain as time evolves. We find distinctive scaling behavior depends on the symmetry of the Hamiltonian and associated dynamics of topological defects like domain walls and spin vortices. In the second part of this talk, I will also introduce our new error correction method in quantum gas microscopy. The parity projected imaging system has a close analogy to the Ising model, where we systematically distinguish random holes and correlated particle-hole pairs in the Mott insulator. After removing the uncorrelated errors, we observe a dramatic improvement in the non-local parity correlator. Furthermore, we measure the generalized brane correlator and confirm that it can be an order parameter for Mott insulators in two dimensions.

Orbitronics: Electron orbital angular momentum in solids

Hyun-Woo Lee
1Department of Physics, Pohang University of Science and Technology, Pohang 37673, Republic of Korea

email: HWL@postech.ac.kr

This talk introduces recent developments in orbitronics, the study of electron angular momentum in solids. Starting from the well-established intrinsic spin Hall effect, we argue that the electron orbital angular momentum is crucial for the intrinsic spin Hall effect in centrosymmetric systems. We then discuss the issue of orbital quenching. We demonstrate that the crystal field's suppression of the electron orbital angular momentum is limited to equilibrium, and the orbital angular momentum can easily develop in many materials when an external electric field is applied. We then discuss recent efforts to probe the orbital dynamics experimentally. Orbital torque measurement and the orbital accumulation measurement will be discussed. The orbital torque measurement is based on the theoretical prediction that an orbital current induces a torque when an orbital current is injected into a ferromagnet. The orbital accumulation measurement is based on the reasoning that an orbital Hall current results in an orbital accumulation in side surfaces. Formal aspects of the orbital dynamics will also be discussed, which imply important differences between the orbital and the spin dynamics.

Engineering Andreev band in graphene Josephson junctions

Andreev bound states (ABS), which form in proximity Josephson junctions, govern the physics of the Josephson devices. Consequently, understanding and manipulating the ABS is essential for optimizing device functionality. In this regard, two topics will be discussed; one is Floquet physics of ABS, and another is ABS of multi-terminal Josephson junction.
First, we will introduce the generation of steady Floquet Andreev (F-A) states in graphene Josephson junctions by continuous microwave application and direct measurement of their spectra by superconducting tunnelling spectroscopy [1]. This can be an example of nonequilibrium quantum state engineering in a device level.
Second, we will discuss the artificial topological band structure of three-terminal graphene Josephson junctions by using superconducting tunneling spectroscopy. We controlled the superconducting phase configurations by applying the flux gates and obtained the ABS energy spectrum as a function of two independent phase differences and energy. Such quasimomentum v.s. energy map of ABS unveils the transition between gapped and gapless states, corresponding to the topological band structure of 2D-Dirac semimetals.
[1] S. Park et al., Nature 603, 421–426 (2022).

Hidden orders in square-lattice iridates

Over the last decade, square-lattice iridates have received much attention as a close analog of cuprate high-temperature superconductors. Although there is not yet firm evidence for superconductivity, a remarkable range of cuprate phenomenology has been reproduced in electron- and hole-doped iridates including pseudogaps, Fermi arcs, and d-wave gaps [1]. Further, a number of symmetry breaking orders reminiscent of those decorating the cuprate phase diagram have been reported using various experimental probes. In this talk, I will discuss our recent results from Raman spectroscopy and resonant x-ray scattering, which show clear evidence of a quantum spin nematic phase in Sr2IrO4, in which spins are quantum entangled to form a multi-polar order without breaking time-reversal symmetry. I will also briefly talk about the prospect of finding a new high-temperature superconductor in iridates using a novel growth technique that allows us to grow samples with much enhanced quality.

[1] Square-lattice iridates, Annu. Rev. Condens. Matter Phys. 10, 315-336 (2019)

Two-dimensional van der Waals magnets: testbed for new physics

Je-Geun Park
Department of Physics & Astronomy, Seoul National University, Seoul, Korea
Email: jgpark10@snu.ac.kr

Two-dimensional (2d) magnetism has been central to decades-long research as it offers the cleanest test bed for new ideas and physics. The prime example is the Onsager solution of the Ising model in 1943. Despite the immense interest from the theoretical side, there has been relatively slow progress on the experimental side.
However, the discovery of van der Waals magnets in 2016 has completely transformed the field of 2d magnetism by providing natural 2d magnets that can be experimentally studied using many tools [1-3]. Despite their short lifetime, van der Waals magnets have been extensively used to test interesting ideas.
Intrinsically magnetic and two-dimensional, these new materials offer exciting yet unexplored opportunities in many directions. In this talk, I am going to highlight a few examples of such new studies: a remarkably coherent quantum entangled magnetic exciton in NiPS3 [4], a Floquet state in MnPS3 [6], and a novel metastable state in FePS3 [7].
[1] Je-Geun Park, J. Phys. Condens. Matter 28, 301001 (2016).
[2] Jae-Ung Lee et al., Nano Lett. 16, 7433–7438 (2016).
[3] Kenneth S. Burch, David Mandrus, and Je-Geun Park, Nature 563, 47 (2018).
[4] Soonmin Kang et al., Nature 583, 785 (2020).
[5] Jun-Yi Shan et al., Nature 600, 235 (2021).
[6] Batyr Ilyas et al. (submitted)

Identification of exotic carriers in highly entangled Mott insulators

Mott insulators may host highly entangled quantum many-body states, including quantum spin liquids. In this talk. we show that topological phase transitions may be utilized to identify Kitaev quantum spin liquids by tuning electric and magnetic fields [1-5]. We show that specific directions of magnetic fields may give gapless Majorana fermion excitations, constrained by the lattice symmetry. Furthermore, we also consider electric field effects and find that topological phase transitions may be controlled in sharp contrast to the common belief that an insulator is inert under weak electric fields due to charge energy gaps. We predict distinctive experimental signatures to detect Kitaev quantum spin liquids, especially in connection with candidate materials such as α-RuCl3. If time permits, we also discuss the recent results in TbInO3 where exotic charge carriers were identified by tera-hertz optical conductivity [6].

[1] Vestiges of Topological Phase Transitions in Kitaev Quantum Spin Liquids, Physical Review Letters 122, 147203 (2019)
[2] Identification of a Kitaev quantum spin liquid by magnetic field angle dependence, Nature Communications 13, 323 (2022)
[3] Thermodynamic evidence for a field-angle-dependent Majorana gap in a Kitaev spin liquid, Nature Physics 18, 429 (2022)
[4] Majorana-fermion origin of the planar thermal Hall effect in the Kitaev magnet RuCl3, arXiv:2305.10619
[5] Manipulating topological quantum phase transitions of Kitaev’s quantum spin liquids with electric fields, arXiv:2308.00760
[6] Unconventional room-temperature carriers in the triangular-lattice Mott insulator TbInO3, Nature Physics (2023, online).

Epitaxial molding of new van der Waals quantum lattice

Moon-Ho Jo1,2,3,* , Heonsu Ahn1,2, Gunho Moon1,2 , and Sukho Lee1,2

1Center for Van der Waals Quantum Solids, Institute for Basic Science (IBS), 2Department of Materials Science and Engineering, and 3Department of Physics, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea

*E-mail: mhjo@postech.ac.kr

In atomically thin van der Waals (vdW) solids, electronic and atomic motions are tightly confined within two-dimensional lattices, giving rise to diverse electronic and optical excitations. Yet, such emergent properties can be further explored, when one can mold artificial lattices as novel condensed matter. In this talk, we discuss our recent developments of epitaxial molding of vdW heterostructures, achieved by deterministic vdW epitaxy in atomic precisions. In particular, we discuss on artificial tuning of crystal mosaic textures, including “geometric bi-crystals” as well as “vicinal stacked superlattices”. In such textured crystals, we have realized a new set of sublattices within the host lattice, which provided exciting opportunities to investigate new vdW quantum phases.

Fractional Josephson effects in Topological Insulators

Yong-Joo Doh*
Department of Physics and Photon Science, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea *email: yjdoh@gist.ac.kr

A hybrid Josephson junction (JJ) made of a topological insulator (TI) is expected to host Majorana zero modes (MZMs) and exhibit 4 periodic supercurrent. This fractional Josephson effect has been evidenced by the absence of odd-integer Shapiro steps under microwave irradiation. However, more reliable evidences are desired, as similar missing steps can arise by non-topological Landau-Zener transitions (LZT). In this study, we present our experimental observations on fractional Josephson effects in Bi2Se3 TI nanoribbons in contact with PbIn superconducting electrodes. For the first time, we have observed bimodal switching current distributions (SCDs) in TI JJs, along with the doubling of voltage in the Shapiro steps. This bimodality is attributed to the coexistence of 4-periodic topological supercurrent and a trivial 2 supercurrent, thereby confirming the presence of MZMs and ruling out the possibility of LZT. Our comprehensive measurements of the SCDs and Shapiro steps offer a reliable means to probe topological supercurrents in various JJs, which hold significant promise for advancing the research field of topological quantum technology.

XFEL diffraction and imaging investigation of ultrafast phase transitions

Changyong Song1,2,3
1Department of Physics, POSTECH, Pohang 37673, Korea, 2Center for Ultrafast Science on Quantum Matter, Max Planck POSTECH Korea Research Initiative, Pohang 37673, Korea, 3Photon Science Center, POSTECH, Pohang 37673, Korea
E-mail: cysong@postech.ac.kr

Intense femtosecond-laser pulses drive material phase transitions via kinetic reactions otherwise hidden in equilibrium measurements, which stimulates a strong interest in revealing the reaction dynamics of individual atoms prompted by photo-depleted bonding electrons. However, the field of ultrafast atomic dynamics has been limited by the challenges involved in resolving the accompanying irreversible processes at the relevant space–time resolution. By establishing single-pulse time-resolved experimental technique using an X-ray free-electron laser, we overcome this to directly observe the kinetic processes accompanied during the nonequilibrium phase transitions. In this talk, we will introduce recent experimental observations of exotic melting reaction forbidden in thermodynamic (near) equilibrium condition together with physical interpretation guided by the two-temperature molecular dynamics.

Characterising Material Nanoparticles with X-ray Free Electron Lasers and Synchrotrons: A Perspective

Adrian P. Mancuso
Diamond Light Source, UK

Material nanoparticles are increasingly relevant in modern life with applications ranging from catalysis to sunscreen and more [1]. Facility-scale X-ray light sources are key tools in the characterisation of such particles, across a variety of techniques from imaging to diffraction to spectroscopy and more. In this presentation I will highlight how the morphology of entire populations of material nanoparticles can be observed using a high-repetition rate X-ray Free Electron Laser (XFEL) using an example from an experiment at the European XFEL [2, 3, 4]. If time, I will point out optical excitation capabilities at European XFEL. Additionally, I will note the complimentary information that can be obtained from synchrotron sources, such as the I16 beamline at Diamond Light Source [5], which includes strain information in addition to the morphology of any given nanoparticle. Finally, I’ll motivate the argument that combining information from these differing facilities provides greater information than just the sum of the two parts, and postulate how one may combine this information meaningfully in future.

References

1 Chem. Rev. (2020), 120, 461-463
2. Ayyer et al, Optica, (2021), 8, 1, 15-23
3 Zhuang, et al, IUCrJ, 9, 2, 204-214
4. Mancuso, et al, J. Synch. Rad, 26, 660–676
5. See, for example, Korsunsky, et al, J. Nanoscience & Nanotechnology, (2010), 10, 9, 5935-5950 or Clark, et al, Nature Materials (2015) 14, 780–784
6 I. Robinson, G. Nisbet, personal communication.

Attosecond measurement and control of quantum dynamics in atoms and solids under strong field

Dong Eon Kim 1, 2
1 Department of Physics, Center for Attosecond Science and Technology, Pohang University of Science and Technology, Pohang, Gyeongbuk 37673, South Korea
2Max Planck Center for Attosecond Science, Max Planck POSTECH/KOREA Res. Init., Pohang, Gyeongbuk 37673, South Korea

Th quest for how quantum systems evolve, and eventually, how to induce such quantum systems to behave as desired has been growing during the last two decades in a new paradigm, “Control Age.” Of the 21st century science. The past two decades have witnessed the remarkable advance in the new metrology for ultrafast electron dynamics, which allows one to control material processes at electron level and study dynamics far away from equilibrium, to which the 2023 Nobel prize in Physics was awarded.
In this talk, I share our attosecond-resolved measurement and control of electon photoioinzation in atom and Zener tunneling in solid. I hope that this provides the audience with the new insights and perspective that these tools have provided in aspects of both fundamental science and future technology

Emergent Quantum Phenomena of Noncentrosymmetric Charge-Density Wave in 1TTransition Metal Dichalcogenides

1T-transition metal dichalcogenides (TMD) have been an exciting platform for exploring the intertwinement of charge density waves and strong correlation phenomena. While the David star structure has been conventionally considered as the underlying charge order in the literature, recent scanning tunneling probe experiments on several monolayer 1T-TMD materials have motivated a new, alternative structure, namely the {anion-centered} David star structure. In this paper, we show that this novel anion-centered David star structure manifestly breaks inversion symmetry, resulting in flat bands with pronounced Rashba spin-orbit couplings. These distinctive features unlock novel possibilities and functionalities for 1T-TMDs, including the giant spin Hall effect, the emergence of Chern bands, and spin liquid that spontaneously breaks crystalline rotational symmetry. Our findings establish promising avenues for exploring emerging quantum phenomena of monolayer 1T-TMDs with this novel charge order.

Nonperturbative Geometric effects in Laser irradiated 3D Dirac Semimetals

Floquet engineering is a tool to understand and utilize coherent phenomena in quantum materials under laser irradiation [1]. This talk focuses on the Floquet states in 3D Dirac semimetals irradiated by circularly polarized laser fields (CPL). Within the pulse duration, artificial axial gauge fields (also known as chiral gauge fields) are realized [2], while Floquet Weyl points appear in the Floquet spectrum [3]. We will discuss the nonperturbative geometric effects [4,5] in this system and account for the recent ultrafast generation of charge current observed in bismuth. References:

[1] T. Oka, S. Kitamura, Annual Rev. Cond. Matt. Phys. 10, 387, (2019).
[2] S. Ebihara, K. Fukushima, T. Oka, Phys. Rev. B 93, 155107 (2016).
[3] L. Bucciantini, S. Roy, S. Kitamura, T. Oka, Phys. Rev. B 96, 041126 (R) (2017).
[4] S. Takayoshi, J. Wu, T. Oka, SciPost 11, 075 (2021).
[5] Y. Hirai, S. Okumura, N. Yoshikawa, T. Oka, R. Shimano, in progress.

Light-induced topological superconductivity

Topological superconductivity (TSC), which is characterized by the non-trivial topology of the superconducting gap, has attracted great attention in the last decade as a new class of superconductivity [1]. The most striking feature of TSC is the emergence of Majorana edge modes, which are known to be applicable to topological quantum computation [2]. Thus, it is highly desirable to realize TSC not only from the point of view of materials science, but also from the point of view of quantum technology. However, the candidate material for TSC is still limited and its realization is challenging. On the other hand, the development of laser light technology provides a new approach for controlling quantum materials. Indeed, it has been reported that strong laser drive effectively changes the band structure and the topologically non-trivial state is induced by laser light [3,4]. An important advantage of this approach is its time scale. A short laser pulse induces the quantum state change in femtoseconds to picoseconds, allowing ultrafast control of quantum materials beyond current electronics technology.
Stimulated by this situation, we have theoretically studied the approach to realize TSC by laser light in recent years [5-9]. This may lead to the realization of the Majorana-based quantum information processor operating in an ultrafast time scale. We have mainly considered two directions. One is the use of the Floquet state, which is a kind of photo-dressed state and has already been used to control topological phases in quantum materials [3,4]. In this direction, we have shown that cuprate thin films [5,6] or bilayer transition metal dichalcogenides [7] illuminated by circularly polarized laser light are good candidates. Another direction is the use of DC supercurrent induced by low-frequency light such as terahertz laser light. We have shown that DC supercurrent drastically changes the quasiparticle spectrum and induces topological phase transitions in various superconductors [8.9]. In this talk I will present these results. If time permits, I will also discuss a recent experiment realizing the Floquet state in superconductors [10] and the possible connection to our proposals and related future directions.

[1] M. Sato, Y. Ando, Rep. Prog. Phys. 80, 076501 (2017).
[2] J. Alicea, Rep. Prog. Phys. 75, 076501 (2012).
[3] Y. H. Wang, H. Steinberg, P. Jarillo-Herrero, N. Gedik, Science 342, 453 (2013).
[4] J. W. McIver, B. Schulte, F.-U. Stein, T. Matsuyama, G. Jotzu, G. Meier, A. Cavalleri, Nat. Phys. 16, 38 (2020).
[5] KT, A. Daido, N. Kawakami, Y. Yanase, Phys. Rev. B 95, 134508 (2017).
[6] Y. Yanase, A. Daido, KT, T. Yoshida, Physica E 140, 115143 (2022).
[7] H. Chono, KT, Y. Yanase, Phys. Rev. B 102, 174508 (2020).
[8] KT, S. Sumita, Y. Yanase, Phys. Rev. B 106, 174508 (2022).
[9] S. Sumita, KT, J. Phys. Soc. Jpn. 91, 074703 (2022).
[10] S. Park, W. Lee, S. Jang, Y.-B. Choi, J. Park, W. Jung, K. Watanabe, T. Taniguchi, G.-Y. Cho, G.-H. Lee, Nature 603, 421 (2022)

X yoonho@postech.ac.kr

PHILIP KIM

Harvard University Department of Physics
11 Oxford Street, LISE 410, Cambridge, MA 02138
Tel: (617) 496-0714; Fax: (617) 495-0416
E-mail: pkim@physics.harvard.edu; Webpage: kim.physics.harvard.ed

Education and Training

Seoul National University Physics B.S. 1990
Harvard University Applied Physics M.A. 1996
Harvard University Applied Physics Ph.D. 1999
University of California, Berkeley Physics Post-Doctoral Fellow 1999-2001

Appointment

2014 – Professor, Department of Physics, Harvard University
2009 – 2014 Professor, Department of Physics, Columbia University
2006 – 2009 Associate Professor, Department of Physics, Columbia University
2002 – 2006 Assistant Professor, Department of Physics, Columbia University
1999 – 2001 Miller Postdoctoral Fellow in Physics, University of California, Berkeley

Honors and Awards

Elected member of the National Academy of Science (2023);
Benjamin Franklin Medal in Physics (2023);
Elected member of the American Academy of Arts and Science (2020);
Tomassoni-Chisesi Prizes (2018);
Vannevar Bush Faculty Fellowship (2018);
Experimental Investigator in Quantum Materials Award, Moore Foundation (2014);
Oliver E. Buckley Prize, American Physical Society (2014);
Dresden Barkhausen Award (2012);
Scientist of the Year, Korean-American scientists and Engineers Association (2011);
IBM Faculty Award (2009);
Ho-Am Science Prize (2008);
American Physical Society Fellow (2007);
Columbia University Distinguished Faculty Award (2007);
Recipient Scientific American 50 (2006);
National Science Foundation Faculty Career Award (2004);
Outstanding Young Researcher Award, Association of Korean Physicists in America (2002);
Named Lectures: Abigail and John Van Vleck Lecture, University of Minnesota (2017); Robert Meservey
Memoroial Lecture, MIT (2016); Rustgi Lecture, State University of New York, Buffalo (2015); Mott
Lecturer, Florida State University / NHMFL (2014); Kay Malmstrom Lecture in Physics, Hamline
University, (2014); Loeb Lecture, Harvard University (2012); Dresden Barkhausen Award (2012);
Yunker Lecture, Oregon State University, (2011); Chapman Lecture, Rice University, (2009);

Publications

Total Publications (More than 280 publications including Nature (12), Science (20), Nature Phys. (11),
Nature Nanotech (15), Nature Materials (5), Phys. Rev. Letts (44), Nano Lett. (36), PNAS (6). Total
Citation (More than 90,000, h-index: 111 according to Web of Science)

Selected Recent Publications:

1. J. Waissman, L. E. Anderson, A. V. Talanov, Z. Yan, Y. J. Shin, D. H. Najafabadi, T. Taniguchi, K. Watanabe, B. Skinner, K. A. Matveev, P. Kim, “Measurement of Electronic Thermal Conductance in Low-Dimensional Materials with Graphene Nonlocal Noise Thermometry,” Nature Nano, 17, 166- 173 (2022).
2. X. Liu, J. I. A. Li, K. Watanabe, T. Taniguchi, J. Hone, B. I. Halperin, P. Kim, C. R. Dean, “Crossover between Strongly-coupled and Weakly-coupled Exciton Superfluids,” Science, 375, 205- 209 (2022).
3. Y . Ronen, T. Werkmeister, D. Najafabadi, A. T. Pierce, L. E. Anderson, Y. J. Shin, S. Y. Lee, Y. H. Lee, B. Johnson, K. Watanabe, T. Taniguchi, A. Yacoby, P. Kim, “Aharonov Bohm Effect in Graphene Fabry Perot Quantum Hall Interferometers,” Nature Nano, 16, 563-569 (2021).
4. Z. Hao, A. M. Zimmerman, P. Ledwith, E. Khalaf, D. H. Najafabadi, K. Watanabe, T. Taniguchi, A. Vishwanath, P. Kim, “Electric field tunable unconventional superconductivity in alternating twist magic-angle trilayer graphene,” Science 371, 1133-1138 (2021).
5. X. Liu, Z. Hao, E. Khalaf, J. Y. Lee, Y. Ronen, H. Yoo, D. H. Najafabadi, K. Watanabe, T. Taniguchi, A. Vishwanath, P. Kim, “Tunable Spin-polarized Correlated States in Twisted Double Bilayer Graphene,” Nature 583, 221-225 (2020).
6. L. A. Jauregui, A. Y. Joe, K. Pistunova, D. S. Wild, A. A. High, Y. Zhou, G. Scuri, K. De Greve, A. Sushko, C.-H. Yu, T. Taniguchi, K. Watanabe, D. J. Needleman, M. D. Lukin, H. Park, P. Kim, “Electrical control of interlayer exciton dynamics in atomically thin heterostructures,” Science 366, 870-875 (2019).
7. X. Liu, Z. Hao, K. Watanabe, T. Taniguchi, B. Halperin, P. Kim, “Interlayer fractional quantum Hall effect in a coupled graphene double-layer,” Nature Physics 15, 893-897 (2019).
8. S.Y. F. Zhao, N. Poccia, M. G. Panetta, C. Yu, J. W. Johnson, H. Yoo, R. Zhong, G.D. Gu, K. Watanabe, T. Taniguchi, S. V. Postolova, V. M. Vinokur, P. Kim, “Sign reversing Hall effect in atomically thin high temperature superconductors,” Phys. Rev. Lett. 122, 247001 (2019).
9. H. Yoo, R. Engelke, S. Carr, S. Fang, K. Zhang, P. Cazeaux, S. H. Sung, R. Hovden, A. W. Tsen, T. Taniguchi, K. Watanabe, G.-C. Yi, M. Kim, M. Luskin, E. B. Tadmor, E. Kaxiras and P. Kim, “Atomic and electronic reconstruction at van der Waals interface in twisted bilayer graphene,” Nature Materials 18, 448–453 (2019).
10. D. K. Bediako, M. Rezaee, H. Yoo, D. T. Larson, S. Y. F. Zhao, T. Taniguchi, K. Watanabe, T. L. Brower-Thomas, E. Kaxiras, P. Kim, “Heterointerface effects in the electro-intercalation of van der Waals heterostructures,” Nature 558, 425–429 (2018)

Synergistic activities:

1. More than 300 keynote speeches, plenary speakers, and invited presentations in academic institutes, industrial institutes, international conferences.
2. Symposium Organizers: the focus session, APS March Meeting, 2004; the focus session, “Thermal, thermoelectric and mass transport at nanoscale” at APS March Meeting, 2006 and the Tutorial session “Graphene Physics;” APS March Meeting, 2007, Advocator of Carbon Electronics; Focused Session Organizers APS March Meeting 2010, Graphene Week 2012. Nano Architech Panel Discussion member 2012, Valleytronics Workshop 2017
3. Advisory Board: ITRS Workshop in 2008, International Advisory Board of ICPS 2010, 2012; Nanotube 2012, Elected Members at Large in APS, 2013-15
4. Associate Editor: Nano Letter, American Chemical Society (2011-2023)
5. Visiting Chaired Professor in Sungkyunkwan University (SKKUU) (3/2019-present), Seoul National University (3/2012-2/2019) and Ulsan National Institute of Science and Technology, Korea (3/2012- 2/2019); Member of Korean Academy of Science and Technology (2011-); Consulting Nakatani Foundation for Advancement of Measuring Technologies in Biomedical Engineering (2018-).

Research

Quantum information science and technology
High-performance & low-power classical computation

Employment

Massachusetts Institute of Technology
Henry Ellis Warren (1894) Professor 07/2022 – present
Professor of Electrical Engineering & Computer Science 07/2021 – present
Professor of Physics 07/2021 – present Director, Center for Quantum Engineering and QSEC 06/2019 – present Associate Director, Research Laboratory of Electronics 01/2017 – present
Laboratory Fellow, MIT Lincoln Laboratory 01/2017 – 02/2023
Associate Professor of Electrical Engineering & Comp. Sci. 07/2019 – 06/2021
Professor of the Practice, MIT Physics Department 07/2015 – 06/2019
Senior Technical Staff, MIT Lincoln Laboratory 05/2009 – 12/2016
Technical Staff, MIT Lincoln Laboratory 02/2003 – 04/2009

P.I.: Engineering Quantum Systems Group (equs.mit.edu), MIT Departments of EECS & Physics, and the Research Laboratory for Electronics
Superconducting quantum information science and engineering
Quantum engineering of solid-state qubits at the quantum-to-classical interface

P.I.: Quantum Information and Integrated Nanosystems Group at MIT Lincoln Lab (through February 2023) Superconducting quantum information science and engineering
CryoCMOS & SFQ electronics development and applications

Co-Founder and Advisor: Atlantic Quantum

Education

Stanford University, Ph.D. in Electrical Engineering; Ph.D. minor in Physics 2003
Massachusetts Institute of Technology, S.M. in EECS 1997
University of Rochester (NY)
B.S. in Electrical Engineering, B.A. in Japanese, Summa Cum Laude 1995

Professional Affiliations and Service

National Quantum Initiative Action Committee appointee (2020-2022, 2023-2025)
National Academies committee member and contributing author for report on “Technical Assessment of the Feasibility and Implications of Quantum Computing” (2017-2018
William D. Oliver, curriculum vitae Scientific Advisory Board, OpenSuperQ, EU Flagship Program (2018-2028)
Scientific Advisory Board, Wallenberg Centre for Quantum Technology, Sweden (2018-2028)
Scientific Advisory Board, Center on Quantum Technology, Academy of Finland (2018-2025)
Scientific Advisory Board, Transformative Quantum Technology, U. Waterloo (2019-2024)
Board member: Adiabatic Quantum Computing Conference; U.S. Committee for Superconductor Electronics; IEEE Applied Superconducting Conference

Awards and Honors

Thornton Family Faculty Research Innovation Fellowship (2021); Senior Member, IEEE (2018); Fellow of the American Physical Society (2016); Lincoln Laboratory Team Award: Digital Superconducting Electronics (2014); Japan Society for the Promotion of Science (JSPS) Visiting Scholar, U. Tokyo (2013); Lincoln Laboratory Staff Seminar (2008), Phi Beta Kappa of Northern California Graduate Award (2000), Sigma Xi (1997), National Defense Science and Engineering Graduate Fellow (1996-1998), USA Today Academic All-American, 3rd Team (1995), Robert L. Wells Prize (1995), Phi Beta Kappa (1994), Monbusho Fellow (1994), 8th Annual National Speech Contest in Japanese, finalist (1993), Tau Beta Pi (1993), Rotary exchange student, Japan (1986-1987), Eagle Scout (1986)

Selected Recent Publications (: Google Scholar: h-index = 56, i10-index = 101)

J. Y. Qiu, …, W. D. Oliver, “Broadband squeezed microwaves and amplification with a Josephson traveling-wave parametric amplifier, Nature Physics (2023).
2. B. Kannan, …, W. D. Oliver, “On-demand directional microwave photon emission using waveguide quantum electrodynamics,” Nature Physics (2023)
3. J. I-J. Wang, …, W. D. Oliver, “Hexagonal Boron Nitride as a low-loss dielectric for superconducting quantum circuits and qubits, Nature Materials (2022).
4. J. Braumüller, …, W. D. Oliver, “Probing quantum information propagation with out-of-timeordered correlators,” Nature Physics 18, 172-178 (2022) 5. A. H. Karamlou, …, W. D. Oliver, “Quantum transport and localization in 1d and 2d tight-binding lattices, npj Quantum Information 8, 35 (2022)
6. M. Kjaergaard, …, W. D. Oliver, “Demonstration of Density Matrix Exponentiation using a superconducting quantum processor,” Physical Review X 12, 011005 (2022)
7. Y. Sung, …, W.D. Oliver, “Realization of high-fidelity CZ and ZZ-free iSWAP gates with a tunable coupler,” Phys. Rev. X 11, 021058 (2021).
8. B. Kannan, …, W.D. Oliver, “Generating spatially entangled itinerant photons with waveguide quantum electrodynamics” Science Advances 6, eabb8780 (2020).
9. A.P. Vepsäläinen, …, J.A. Formaggio, B. VanDevender, W.D. Oliver, “Impact of ionizing radiation on superconducting qubit coherence,” Nature 584, 551-556 (2020).
10. B. Kannan, …, W.D. Oliver, “Waveguide quantum electrodynamics with giant superconducting artificial atoms,” Nature 583, 775-779 (2020).
11. J.I-J. Wang, …, P. Jarillo-Herrero, W.D. Oliver, “Quantum coherent control of a hybrid superconducting circuit made with graphene-based van der Waals heterostructures,” Nature Nanotechnology 14, 120-125 (2019).
12. D. Rosenberg, …, W.D. Oliver, “3D integrated superconducting qubits,” npj Quantum Information 3, 42 (2017)

CAREER

2015 - present
Professor (currently department chair)
Physics Department, UC Berkeley

2011 - 2014
Associate Professor
Physics Department, UC Berkeley

2006 - 2011
Assistant Professor
Physics Department, UC Berkeley

2002 - 2006
Postdoctoral Associate
Yale University

1996
Research Intern
HYPRES, Inc. (Superconducting Circuits)

1995 - 1997
Research Assistant
Harvard University (AMO Science)

1994 - 1995
Research Assistant
Columbia University (Astrophysics)

1993
Research Assistant
Polytechnic University (Metallurgy)

PROFESSIONAL

Irfan Siddiqi Quantum Consulting, LLC
Sole Proprietor

EDUCATION

Yale University - Ph.D. in Applied Physics (2002)
Harvard University - A.B. cum laude in Chemistry & Physics (1997)
Bronx HS of Science - Class of 1994

Honors & Fellowship

The Joseph F. Keithley Award, American Physical Society (2021)
Distinguished Teaching Award, University of California, Berkeley (2016)
American Physical Society, Division of Condensed Matter Physics, Fellow (2015)
The DARPA Young Faculty Award (2009)
The Air Force Office of Scientific Research, Young Investigator Award (2008)
The UC Berkeley Chancellor’s Partnership Faculty Fund (2007)
The UC Berkeley Hellman Faculty Fund (2007)
The Office of Naval Research, Young Investigator Award (2007)
The George E. Valley Prize, American Physical Society (2006)
The Harding Bliss Prize, Yale University (2002)
The Harvard Foundation for Intercultural and Race Relations Citation (1997)
Perkins Prize, Lowell House Harvard University (1997)
NASA Graduate Student Researchers Program, 1997-2000
Edward Barlow Fellowship, Yale University, 1997-1998
Q Entry Scholarship, Harvard University, 1997
Harvard Scholarship for Academic Excellence, 1997
New York Governor’s Award and Scholarship 1994-1996

Professional Activities

Organized (w. J. Clarke) invited session on Superconducting Qubits at the Applied Superconductivity Conference, 2006
Member Program Committee, International Superconducting Electronics Conference, 2007
Member International Advisory Committee, International Conference on Nanotechnology and its Applications, 2007
Organizer (w. K. Osborn and B. Palmer), Decoherence in Superconducting Qubits (DiSQ) conference in Berkeley, 2007
Member, Program Committee, Applied Superconductivity Conference, 2010
Member, Program Committee, Applied Superconductivity Conference, 2012
Grant Reviewer, European Research Council 2012
Textbook Reviewer, W.W. Norton & Co, 2013, 2014
Member, Program Committee, International Superconducting Electronics Conference, 2013
Co-Chair, Electronics Program Committee, Applied Superconductivity Conference, 2014
External Reviewer, Santa Clara University, Santa Clara, California, 2013
Grant Reviewer, Japan Society for the Promotion of Science, 2014 Honors & Fellowships Professional Activities Curriculum Vitae Irfan Ahmed Siddiqi 3
Grant Reviewer, Wallenberg Foundation, Sweden, 2014
Grant Reviewer, Strategic Research Council, Sweden, 2014
Member, Editorial Board, Superconductor Science & Technology, Institute of Physics 2014-2017
Founding Director, Center for Quantum Coherent Science, 2015
Program Co-Chair, QIM IV, Paris, 2017
Section Lead, DOE Report on Next Generation Quantum Systems, 2017
Member, Editorial Board, Physical Review X, 2018-Present
Grant Reviewer, Samsung Research, 2019-2020

Advisees

GRADUATE STUDENTS: Natania Antler, Larry Chen, Trevor Chistolini, Andrew Eddins, Michael Hatridge, Akel Hashim, Edward Henry, Christopher Macklin, John-Mark Kreikebaum, William Livingston, Marie Lu, Eli Levenson-Falk, Brian Marinelli, Brad Mitchell, Vinay Ramasesh, Mollie Schwartz, Daniel Slichter, and Steve Weber.

POSTDOCTORAL SCHOLARS: Archan Bannerjee, Machiel Blok, James Colless, Allison Dove, Emmanuel Flurin, Shay Hacohen-Gourgy, Emile Hoskinson, Gerwin Koolstra, Roger Luo, Alexis Morvan, Kater Murch, Ofer Naaman, Ravi Naik, Shahid Nawaz, Kasra Nowrouzi, Kevin O’Brien, Nico Roch, Sydney Schreppler, Andrew Schmidt, David Toyli, R. Vijayaraghavan, and Jean-Loup Ville.

UNDERGRADUATE STUDENTS: Stefania Balasiu, Laura Brandt, Phil Chen, Yitian Chen, Dennis Feng, Nick Frattini, Helia Kamal, Jianheng Luo, James Lee, Zlatko Minev, Reinhardt Lolowang, Anirudh Narla, Ravi Naik, Seita Onishi, Noah Stevenson, Yu-Dong Sun, Jack Qiu, Aditya Venketramini, Dirk Wright, and Michel Zopas.

Andrew N. Cleland
University of Chicago

Andrew N. Cleland is the John A. MacLean Sr. Professor for Quantum Engineering Innovation in the Pritzker School of Molecular Engineering at the University of Chicago, Director of the Pritzker Nanofabrication Facility and a Senior Scientist at Argonne National Laboratory. He has served in the Chair line for the American Physical Society – Division of Quantum Information from 2019-2023, and is co-director, NSF Soft and Hybrid Nanotechnology Experimental Resource (SHyNE). He was awarded a Fulbright Distinguished Chair in Quantum Science and Technology (US Dept of State, 2023).

His research focuses on developing superconducting quantum circuits and nanoscale optical and mechanical devices. His accomplishments include the first demonstration of a mechanical system cooled to its quantum ground state; the first observation of the acoustic Hong-Ou-Mandel effect; the demonstration of a high fidelity, scalable superconducting quantum bit operating at the threshold for quantum error-correction; and the development of a piezo-optomechanical system transducing between the microwave and optical frequency domains.

Cleland is the author of over 150 peer-reviewed publications. His work was recognized as the Science “Breakthrough of the Year” for 2010, and selected as one of the “Top Ten Discoveries in Physics” by the Institute of Physics (United Kingdom) in both 2010 and 2011. He is a Fellow of the American Association for the Advancement of Science and a Fellow of the American Physical Society.

Cleland earned a BS in engineering physics and a PhD in physics from the University of California, Berkeley. Prior to joining the University of Chicago, Cleland was a Professor of Physics at the University of California, Santa Barbara, and served as the Associate Director of the California Nanosystems Institute

Institutional appointments

Full professor, Department of Physics, University of Toronto
Co-Director, CIFAR program on Quantum Information Science
Founding member, Centre for Quantum Information & Quantum Control
Affiliate member, Perimeter Institute

Educational background

Ph.D. Physics 1994 U.C. Berkeley
“When Can Light Go Faster Than Light? The single-photon tunneling time and its subfemtosecond measurement via quantum interference,” doctoral thesis under Prof. R.Y. Chiao.
M.A. Physics 1991 U.C. Berkeley
B.S. Physics 1988 Yale University

Research group

2 postdocs, 8 Ph.D. students, 2 M.Sc. students, 1 B.Sc. student, 1/3 shared technologist

Most significant research funding

NSERC Discovery Grant “Experimental Quantum Information, Quantum Measurement, and Quantum Foundations With Entangled Photons and Ultracold Atoms,” 2015-2020: $77,000/yr
CIFAR Support “Quantum Information Processing,” 2003-continuing: currently $80,000/yr
NSERC RTI Grant “Nonlinear Optics in the Quantum Regime, Based on Ultracold Rydberg Atoms,” 2014-2016: $150,000
Fetzer Franklin Foundation: “Experimental Probes Of The Ontological Reality of the Quantum World”, 2015-2020: $1,025,000

Most relevant honours/awards

Fellow, Royal Society of Canada: 2016
Fellow, American Physical Society; Fellow, Optical Society of America: 2008
McLean fellowship; Steacie Fellowship: 2007
Rutherford Memorial Medal of the RSC; Herzberg Medal of the CAP: 2006
John Charles Polanyi Prize: 1997
Outstanding doctoral thesis in AMO physics, American Physical Society: 1996

Selected publications

- Measuring the time a tunnelling atom spends in the barrier, Ramón Ramos et al sub. to Nature (arxiv.org/abs/1907.13523)
- Observation of a large, resonant, cross-Kerr nonlinearity in a free-space Rydberg medium, Josiah Sinclair et al, to appear in Phys. Rev. Research (arxiv.org/abs/1906.05151)
- Experimental Demonstration of Quantum Fully Homomorphic Encryption with Application in a Two-Party Secure Protocol, W. K. Tham et al., to appear in Phys. Rev. X (arxiv.org/abs/ 1811.02149).
- Atom-optics knife-edge: Measuring narrow momentum distributions, Ramon Ramos et al., Phys. Rev. A 98,023611 (2018).
- Macroscopic Quantum Tunneling Escape of Bose-Einstein Condensates, Xinxin Zhao et al. Phys. Rev. A 96,063601 (2017).
- Weak-value amplification and optimal parameter estimation in the presence of correlated noise, Josiah Sinclair et al., Phys. Rev. A 96, 052128 (2017).
- Beating Rayleigh's Curse by Imaging Using Phase Information, Weng-Kian Tham et al., Phys. Rev. Lett. 118,070801 (2017)
- Weak-value amplification of the nonlinear effect of a single photon, Matin Hallaji et al., Nature Physics10.1038/nphys4040 (2017)
- Interaction-assisted quantum tunneling of a Bose-Einstein condensate out of a single trapping well, Shreyas Potnis et al., Phys. Rev. Lett. 118, 060402 (2017)
- Simulating and Optimising Quantum Thermometry Using Single Photons, W.K. Tham et al., Sci. Rep. 6,38822 (2016).
- Experimental Demonstration of the Effectiveness of EIT..., Greg Dmochowski et al., Phys. Rev. Lett. 116,173002 (2016).
- Experimental nonlocal and surreal Bohmian trajectories, Dylan Mahler et al., Science Advances 2, e1501466(2016). [widely reported in the media, with an Altmetrics score of 202]
- Observation of the nonlinear phase shift due to single post-selected photons, Amir Feizpour et al., Nature Physics, DOI: 10.1038/nphys3433 (2015)
- Characterizing an entangled-photon source with classical detectors ..., Lee Rozema et al., Optica 2, 430(2015).
- Quantum Data Compression of a Qubit Ensemble, Lee Rozema et al., Phys. Rev. Lett. 113, 160504 (2014) [Editors' Suggestion and featured as a Focus in Physics; chosen as one of Physics World’s “Top Ten” Physics Breakthroughs of 2014]
- Experimental demonstration of a time-domain multidimensional quantum channel, Xingxing Xing et al., Optics Express 22, 25128 (2014)
- Scalable Spatial Superresolution Using Entangled Photons, Lee Rozema et al., Phys. Rev. Lett. 112, 223602(2014). [Editors’ Suggestion and a Viewpoint in Physics]
- On the Optimal Choice of Spin-Squeezed States for Detecting and Characterizing a Quantum Process, Lee Rozema et al., Phys. Rev. X.4, 041025 (2014)
- Observing the Onset of Effective Mass, Rockson Chang et al., Phys. Rev. Lett. 112, 170404 (2014).
- Cooper-pair based photon entanglement without isolated emitters, Alex Hayat et al., Phys. Rev. B 89, 094508(2014).
- Adaptive quantum state tomography improves accuracy quadratically, Dylan Mahler et al., Phys. Rev. Lett.111, 183601 (2013).
- Observation of Transient Momentum-Space Interference During Scattering of a Condensate..., Rockson Chang et al., Phys. Rev. A 88, 053634 (2013)
- Coherent control of population transfer between vibrational states in an optical lattice via twopath quantum interference, Chao Zhuang, Christopher Paul, Xiaoxian Liu, Samansa Maneshi, Luciano Cruz, and Aephraim Steinberg, Phys. Rev. Lett. 111, 233002 (2013).
- Multidimensional quantum information based on single-photon temporal wavepackets, Alex Hayat, Xingxing Xing, Amir Feizpour, and Aephraim M. Steinberg, Opt. Exp. 20, 29174 (2012).
- Violation of Heisenberg’s Measurement-Disturbance Relationship by Weak Measurements, Lee Rozema, Ardavan Darabi, Dylan Mahler, Alex Hayat, Yasaman Soudagar, and Aephraim Steinberg, Phys. Rev. Lett. 109, 100404 (2012)
- Observing Bohmian Trajectories of a Single Photon using Weak Measurement, S. Kocsis, B. Braverman, M.J. Stevens, R.P. Mirin, L.K. Shalm, and A.M. Steinberg, Science 332, 1170 (2011) (selected as Physics World’s top “breakthrough of the year” for 2011)
- Coherence freeze in an optical lattice investigated via pump-probe spectroscopy, Samansa Maneshi, Chao Zhuang, Christopher R. Paul, Luciano S. Cruz, and Aephraim M. Steinberg, Phys. Rev. Lett. 105, 193001 (2010)
- Squeezing and over-squeezing of triphotons, L.K. Shalm, R.B.A. Adamson, and A.M. Steinberg, Nature 457, 67 (2009)
- Observation of high-order quantum resonances in the kicked rotor, J.F. Kanem, S. Maneshi, M. Partlow, M. Spanner, A.M. Spanner, Phys. Rev. Lett. 98, 083004 (2007)
- Super-resolving phase measurements with a multi-photon entangled state, M.W. Mitchell, J.S. Lundeen, and A.M. Steinberg, Nature 429, 161 (2004)
- Experimental application of decoherence-free subspaces in a quantum computing algorithm, M. Mohseni, J.S. Lundeen, K.J. Resch, and A.M. Steinberg, Phys. Rev. Lett. 91, 187903 (2003).
- Diagnosis, prescription,and prognosis of a Bell-state filter by quantum process tomography, M.W. Mitchell, C.W. Ellenor, S. Schneider, and A.M. Steinberg, Phys. Rev. Lett. 91 , 120402 (2003)
- A conditional-phase switch at the single-photon level, K.J. Resch, J.S. Lundeen, and A.M. Steinberg, Phys. Rev. Lett. 89, 037904 (2002).
- Nonlinear optics with less than one photon, K.J. Resch, J.S. Lundeen, and A.M. Steinberg, Phys. Rev. Lett. 87, 123603 (2001).
- How much time does a tunneling particle spend in the barrier region?, A. M. Steinberg, Phys. Rev. Lett. 74, 2405-2409 (1995)
- Measurement of the single-photon tunneling time, A.M. Steinberg, P.G. Kwiat, and R.Y. Chiao, Phys. Rev. Lett. 71, 708-711 (1993)

Invited talks

Total over 200, including at: Ecole Normale Supérieure; Harvard/MIT CUA; Weizmann Institute; Universität Innsbruck; Institut d'Optique Théorique et Appliquée; Los Alamos National Labs; Kavli Institute for Theoretical Physics; Oxford University; Collège de France; Max-Planck Institute for Quantum Optics; and others.

Other relevant information

27 papers cited over 100 times; 46 papers cited over 46 times. 9 Ph.D’s trained 2013-2018. Past students include 5 professors (one CRC and one Steacie fellow), research scientists, data/finance professionals, and several entrepreneurs.

Short CV - Prof. Immanuel Bloch

Immanuel Bloch is scientific director at the Max-Planck-Institute of Quantum Optics, Garching and professor for experimental physics at the Ludwig-Maximilians University (LMU) in Munich. Immanuel Bloch obtained his PhD in physics in 2000 from LMU. From 2003-2009 he was full professor at the University of Mainz. In 2009 he returned to Munich, where his research focus lies on the investigation of quantum many-body systems, quantum simulations and quantum information processing. Immanuel Bloch received several prizes for his work, among them the Gottfried-Wilhelm-Leibniz prize of the German Science Foundation (DFG), the German National Merit Medal in 2005, the International Commission of Optics prize, the Senior Prize for Fundamental Aspects of Quantum Electronics and Optics of the European Physical Society, the Körber European Science Prize, the Senior BEC Award, the Harvey Prize of the Technion the Zeiss Research Award and was named Clarivate Citation Laureate in 2022 for his pioneering work on Quantum Simulation.

ACADEMIC BACKGROUND

2001 Ph.D., University of Maryland, Baltimore Countrty
1995 B.S., Yeungnam University

Professional career

2004- Present Professor, POSTECH
2016-2019 Seokcheon (Young) Chair Professor
2019-2020 Visiting Professor, Kyoto University (Japan)
2012-2013 Visiting Professor, Duke University (USA)
2002-2004 Eugene P. Wigner Fellow (OakRidge National Lab, USA)

Hongkun Park

Hongkun Park is Mark Hyman Jr. Professor of Chemistry and Professor of Physics at Harvard University. He is also a Member of the Harvard Quantum Science and Engineering Graduate Program, Broad Institute of Harvard and MIT, Harvard Center for Brain Science, and Harvard Stem Cell Institute.

Hongkun Park received his B.S. degree in Chemistry from the College of Natural Sciences at Seoul National University, Korea, where he graduated summa cum laude and Valedictorian in 1990. Following two years of mandatory military service in the Republic of Korea Army, he proceeded to Stanford University, where he obtained his Ph.D. in Chemistry in 1996 under the direction of Richard N. Zare, with a thesis on photoionization dynamics of nitric oxide probed by angle- and energy-resolved photoelectron spectroscopy. He joined the faculty at Harvard University in 1999 after a three-year postdoctoral fellowship with Paul Alivisatos and Paul McEuen at the University of California at Berkeley and Lawrence Berkeley National Laboratory.

His current research group focuses on fundamental studies of nanoscale electrical, optical, and plasmonic devices that operate based upon quantum mechanical principles as well as the development of new nano- and microelectronic tools that can interface with living cells, cell networks, and organisms. The goal of his quantum optoelectronics effort is to develop solid-state optoelectronic devices that work all the way down to the single quantum level, thus paving the way for all-optical computing and solid-state quantum information processing. His nano-bio interfacing effort is geared toward developing new nanoscale tools for interrogating living cells and cell networks, with the focus in illuminating the inner workings of the brain. He is also developing ultra-sensitive magnetic, electric, and temperature sensors based on diamond color centers and using them to address various problems spanning condensed matter physics, molecular structural determination, and biological sensing.

Awards and honors that Hongkun Park has received include Ho-Am Foundation Prize in Science, US Department of Defense Vannevar Bush Faculty Fellowship, NIH Director's Pioneer Award, David and Lucile Packard Foundation Fellowship, Alfred P. Sloan Research Fellowship, The Scientist of the Year Award by KSEA, Camille Dreyfus Teacher-Scholar Award, Kavli Lectureship from the Delft University of Technology, A. R. Gordon Distinguished Lectureship at the University of Toronto, and William Draper Harkins Lectureship at the University of Chicago.

박홍근

박홍근 박사는 현재 Harvard 대학교의 Mark Hyman Jr. 석좌 교수로서, 화학과, 화학생물과, 물리학과, 그리고 Quantum Science and Engineering Program 의 교수입니다. 그는 Broad Institute of Harvard and MIT, Harvard Center for Brain Science, Harvard Stem Cell Institute 에도 소속되어 있습니다.

박홍근 박사는 서울대학교 자연과학대 화학과를 1990 년 대학 수석으로 졸업한 후 대한민국 육군에서 군복무를 마쳤습니다. 그 후 Stanford 대학교에 진학하여 1996 년 Richard N. Zare 교수의 지도 아래 Ph.D. 학위를 받았습니다. 그는 UC Berkeley/Lawrence Berkeley National Lab 에서 3 년간의 Postdoctoral fellow 과정을 거친 후 1999 년 하버드 대학교 교수진에 합류했습니다.

그의 연구는 양자 역학 원리를 기반으로 작동하는 나노 크기의 전기, 광학 장치에 대한 기초 연구와, 살아있는 세포 및 유기체와 연결할 수 있는 새로운 나노 전자 도구 개발에 중점을 두고 있습니다. 그의 양자 광전자 공학 노력의 목표는 단일 양자 수준까지 작동하는 고체 광전자 장치를 개발하여 양자 컴퓨팅 및 양자 정보 처리를 위한 길을 닦는 것입니다. 그의 나노-바이오 인터페이스 노력은 뇌의 내부 작용을 조명하는 데 초점을 두고 살아있는 세포와 세포 네트워크를 조사하기 위한 새로운 나노 규모 도구 개발에 맞춰져 있습니다. 또한 다이아몬드 컬러 센터를 기반으로 초고감도 양자 센서를 개발하고 이를 사용하여 응집 물질 물리학, 분자 구조 결정 및 생물학적 감지에 이르는 다양한 문제를 해결하고 있습니다.

박홍근 교수는 호암과학상, 미국 NIH Director's Pioneer Award, 미국 국방부 Vannevar Bush Faculty Fellowship, David and Lucile Packard Foundation Fellowship, Alfred P. Sloan Research Fellowship, KSEA Scientist of the Year Award, Camille Dreyfus TeacherScholar Award, Delft University of Technology 의 Kavli Lectureship, University of Toronto 의 A. R. Gordon Distinguished Lectureship, University of Chicago 의 William Draper Harkins Lectureship 등 여러 상들을 수상하였습니다.

Main Interest

Superconducting Quantum Circuit, Hybrid Quantum System
Waveguide QED, Quantum Optics, Topological Photonics
Quantum Many-Body Physics, Quantum Information and Computation

Education

California Institute of Technology (Caltech) M.S. (2019); Ph.D. (2022) in Applied Physics
(Pasadena, CA, United States Sep. 2016 - Feb. 2022)
– Thesis: Waveguide Quantum Electrodynamics in Superconducting Circuits
– Advisor: Prof. Oskar J. Painter
– Committee: Prof. Andrei Faraon, Prof. Fernando Brandão, and Prof. John Preskill
Seoul National University (SNU)
B.S., summa cum laude in Physics (Seoul, Korea Mar. 2009 - Feb. 2016)
– Advisor: Prof. Hyunseok Jeong

Research and Professional Experience

Assistant Professor Seoul, Korea
Department of Physics & Astronomy, Seoul National University Sep. 2023 - Present
– Principal Investigator of Quantum Device Lab at SNU
– Topic: Quantum Information Experiments in Superconducting Circuits

IQIM Postdoctoral Scholar Pasadena, CA, United States
Institute for Quantum Information and Matter (IQIM), Caltech Mar. 2022 - July 2023
– Topic: Quantum Many-Body Physics in Superconducting Quantum Processors
– Advisor: Prof. Oskar J. Painter

Graduate Research Assistant Pasadena, CA, United States
Thomas J. Watson, Sr. Laboratory of Applied Physics, Caltech July 2016 - Feb. 2022
– Topic: Waveguide Quantum Electrodynamics in Superconducting Circuits
– Advisor: Prof. Oskar J. Painter

Undergraduate Research Assistant Wako-shi, Saitama, Japan
Interdisciplinary Theoretical Science Research Group (iTHES), RIKEN July 2014 - Dec. 2014
– Topic: Circuit QED realization of quadratic optomechanical coupling
– Advisor: Prof. Franco Nori

Major Scientific Achievement

First observation of coherent collective dynamics in waveguide QED
First experimental demonstration of vacancy-like dressed states in topological waveguide QED
Development of superconducting quantum devices based on microwave metamaterials
First experimental realization of Bose-Hubbard quantum simulator with tunable long-range
connectivity and individually addressing

Awards, Honors, and Fellowships

2023 POSCO Science Fellow, POSCO Chung-Am Foundation
2022 IQIM Postdoctoral Fellowship, California Institute of Technology
2016 Doctoral Study Abroad Program Grant, Korea Foundation for Advanced Studies
2014 Dean’s List, College of Natural Sciences, Seoul National University
2012 Bronze Medal, National Collegiate Mathematics Competition, Korean Mathematical Society
2009 National Science and Engineering Scholarship, Korea Student Aid Foundation
2007 Gold Medal, National Physics Olympiad, Korean Physical Society

Professional Activities

Member of the American Physical Society (since 2017)
Reviewer for scientific journals: Physical Review Letters (since 2022), Quantum (since 2021), ACS
Photonics (since 2021), Science Advances (since 2023), Nature Physics (since 2023).

Teaching Experience

Quantum Electronics, Caltech (Instructor: Prof. Oskar Painter) Pasadena, CA, USA
Teaching Assistant, Substitute Lecturer Spring Term, 2019

Solid-State Physics, Caltech (Instructor: Prof. Keith Schwab) Pasadena, CA, USA
Teaching Assistant Spring Term, 2017

Basic Physics, Seoul National University Seoul, Korea
Tutor Spring 2010, Spring & Fall 2013, and Spring 2014

Basic Calculus, Seoul National University Seoul, Korea
Tutor Fall 2010

Publications

∗ These authors contributed equally to the work.
† The corresponding author if relevant.
1. Xueyue Zhang∗ , Eunjong Kim∗ , Daniel K. Mark, Soonwon Choi, Oskar Painter A superconducting quantum simulator based on a photonic-bandgap metamaterial Science 379, 278-283 (2023).
2. Vinicius S. Ferreira∗ , Jash Banker∗ , Alp Sipahigil, Matthew H. Matheny, Andrew J. Keller, Eunjong Kim, Mohammad Mirhosseini, and Oskar Painter Collapse and Revival of an Artificial Atom Coupled to a Structured Photonic Reservoir Phys. Rev. X 11, 041043 (2021).
3. Eunjong Kim∗ , Xueyue Zhang∗ , Vinicius S. Ferreira, Jash Banker, Joseph K. Iverson, Alp Sipahigil, Miguel Bello, Alejandro Gonzalez-Tudela, Mohammad Mirhosseini, Oskar Painter Quantum Electrodynamics in a Topological Waveguide
Phys. Rev. X 11, 011015 (2021). [Featured in Physics]
4. Mohammad Mirhosseini∗ , Eunjong Kim∗ , Xueyue Zhang, Alp Sipahigil, Paul B. Dieterle, Andrew J. Keller, Ana Asenjo-Garcia, Darrick E. Chang, and Oskar Painter
Cavity quantum electrodynamics with atom-like mirrors
Nature 569, 692-697 (2019).
5. Mohammad Mirhosseini, Eunjong Kim, Vinicius S. Ferreira, Mahmoud Kalaee, Alp Sipahigil, Andrew J. Keller, and Oskar Painter
Superconducting metamaterials for waveguide quantum electrodynamics
Nat. Commun. 9, 3706 (2018).
6. Eun-jong Kim† , J. R. Johansson† , and Franco Nori
Circuit analog of quadratic optomechanics
Phys. Rev. A 91, 033835 (2015).

Seminar/Conference Presentations

1. Invited Talk: Engineering long-range connectivity in superconducting quantum devices, The 21st Workshop of Quantum Information Society of Korea, Seoul, Republic of Korea (Oct. 6, 2023).
2. Seminar: A superconducting quantum simulator based on a photonic bandgap metamaterial, Seoul National University Physics Colloquium, Seoul, Republic of Korea (Sep. 27, 2023).
3. Seminar: A scalable superconducting quantum simulator with long-range connectivity based on a photonic bandgap metamaterial, Korea Research Institute of Standards and Science (KRISS), Virtual, Daejeon, Republic of Korea (Nov. 1, 2022).
4. Invited Talk: A hardware-efficient quantum simulator architecture with long-range connectivity and high-fidelity qubit readout, Princeton Quantum Workshop—Qubit Readout: Advances in Theory & Experiments (QuRATE), Virtual, Princeton, New Jersey, USA (Oct. 26, 2022).
5. Poster: Quantum electrodynamics in a topological waveguide, Gordon Research Conference: Quantum Science, Eaton, Massachusetts, USA (Jul. 29–Aug. 3, 2022).
6. Invited Talk: A scalable superconducting quantum simulator with long-range connectivity based on a photonic bandgap metamaterial, International Conference on Quantum Computing 2022, Seoul, Republic of Korea (Jun. 30–Jul. 1, 2022)
7. Seminar: Waveguide quantum electrodynamics in superconducting circuits, Seoul National University Quantum Science and Technology Forum, Virtual, Republic of Korea (Oct. 19, 2021)
8. Invited Talk: Quantum electrodynamics in a topological waveguide, Benasque Workshop—Topology meets quantum optics, Virtual, Spain (Jun. 2–4, 2021).
9. Invited Talk: Waveguide quantum electrodynamics in superconducting circuits (F11.03), KPS Spring Meeting, Virtual, Republic of Korea (Apr. 21–23, 2021).
10. Talk: A superconducting metamaterial quantum processor for studying quantum many-body physics (B30.004-5), APS March Meeting, Virtual, USA (Mar. 15–19, 2021).
11. Seminar: Cavity QED with atom-like mirrors: waveguide QED in the strong-coupling regime, Korea Research Institute of Standards and Science, Virtual, Republic of Korea (Jan. 27, 2021).
12. Seminar: Quantum electrodynamics in a topological waveguide, AWS Quantum Hardware Team Weekly Tech Talk & Discussion, Virtual, USA (Jul. 30, 2020).
13. Talk: Blueprint for Quantum Simulation with Superconducting Metamaterials, IQIM Retreat, Lake Arrowhead, California, USA (Mar. 22–24, 2019).
14. Talk: Waveguide-mediated interaction of artificial atoms in the strong coupling regime (B26.001-2), APS March Meeting, Boston, Massachusetts, USA (Mar. 4–8, 2019).
15. Poster: Cavity QED with artificial atomic mirrors, Gordon Research Conference: Quantum Science, Eaton, Massachusetts, USA (Jul. 29–Aug. 3, 2018).

Patents

1. US Patent App. 17127605, “Shielded bridges for quantum circuits,” May 20, 2021.
2. US Patent 10916821, “Metamaterial waveguides and shielded bridges for quantum circuits,” Feb. 9, 2021.

Jaewook Ahn

Korea Advance Institute of Science and Technology (KAIST)
291 Daehak-ro, Yuseong-gu, Daejeon 34141, Korea
+82-42-350-2546 (phone), 2510 (fax)
Office: Natural Science Building #3305
E-mail: jwahn@kaist.ac.kr
Homepage: http://qcl.kaist.ac.kr

Jaewook Ahn is a professor in the department of physics of KAIST (Korea Advanced Institute of Science and Technology). He joined KAIST in 2004, after the Ph.D study in University of Michigan and postdoctoral research at Los Alamos National Laboratory of the United States of America. He and his team’s research has been focused on quantum applications of Rydberg atoms including quantum computing, quantum simulation, and quantum sensing. Major contributions are the atom array by optical tweezer rearrangement, Rydbergatom quantum wire, and Rydberg-atom programming of NP problems, for the first of which Jaewook Ahn received Korea government medal (Order of Science and Technology Merit) in 2019. Jaewook Ahn serves as the branch director (Daejeon-Chungnam-Sejong branch) of Korean Physical Society, the chief review board (CRB) of physics in National Research Foundation of Korea, and the commission secretary of atomic and molecular and optical physics (C-15) of IUPAP (International Union of Pure and Applied Physics).

Current Position

Professor, Department of Physics, KAIST

Previous Career and Education:

2018-present, Professor, Department of Physics, KAIST
2/2017-12/2020, Director, Quantum Information Research Center, KAIST
3/2018-9/2020, Professor in Charge of Graduate Education, Department of Physics, KAIST
6/2012-5/2014, Professor in Charge of Undergraduate Education, Department of Physics, KAIST
2011-2017, Associate Professor, Department of Physics, KAIST
2005-2011, Assistant Professor, Department of Physics, KAIST
8/2002-12/2004, Director-funded Postdoctoral Fellow, Los Alamos National Laboratory (advisor: Dr. A. J. Taylor)
8/1996-7/2002, Ph.D in Physics, University of Michigan, Ann Arbor, Michigan, USA. Thesis: Rydberg Atom Data Register: a use of atomic electronic states for information storage (advisor: Prof. Philip H. Bucksbaum)
8/1995-7/1996, Graduate Student, Lehigh University, Bethlehem, Pennsylvania, USA
3/1994-7/1995, Lecturer and Teaching Assistant, Physics Department, University of Seoul (formerly Seoul City University), Seoul, Korea
3/1988-2/1994, B.S. and M.S. in Physics, Seoul National University, Seoul, Korea. Thesis: Statistical
mechanical study of learning-from-examples in a multi-state classifier (advisor: Prof. Doochul Kim)

Personal and Family

• Born in July 27, 1969
• Married, one child

Other Scholarly Activities:

Korean Physical Society, Daejeon-Chungnam-Sejong Branch, Director, 2023/01-present
2. International Union of Pure and Applied Physics (IUPAP), AMO commission (C-15) secretary, 2021-present
3. Korea Research Foundation, Chief Review Board of Physics, 2022/11-present
4. Order of Science and Technology Merit (과학기술훈장, 진보장), Korea Government, 2019/4/22
5. International Advisory Council, Asian International Seminar on Atomic and Molecular Physics, 2017-present
6. 2019/05/8-22, CN Yang Award (AAPPS, APCTP) selection committee
7. Associate Editor, Journal of the Optical Society of America B, 2014-2017
8. Editorial Board Member, Journal of Korean Physical Society, 2012-2015
9. Local Organizing Committee, International Conference on Atomic Physics 2016

Ph.D. Thesis Supervised:

1. Minhyuk Kim, Implementations and Applications of Three-Dimensional Rydberg Atom Assemblies (2021/10/19)
2. Yunheung Song, Ultrafast Quantum Gates for Trapped Neutral Atom Qubits (2019/11/14).
3. Hanrae Jo, Coherent Control of Neutral-Atom Qubit Systems: Robust Control, Leakage Suppression, and Entanglement Generation (2019/06/12).
4. Woojun Lee, Formation and Control of Rydberg Atom Arrays for Qquantum Information Processing (2018/11/12).
5. Hyosub Kim, Reconfigurable Single-Atom Array for Rydberg Atom Quantum Simulation (2017/11/03).
6. Hangyeol Lee, Quantum Control of Cold Alkali Atoms by Using Hybrid Temporal-Spectral Pulse Shaping (2016/11/29).
7. Daehoon Han, Lattice Vibrations of Mineral and Polarization Dependence of Material in a Slit Using Terahertz Waves (2016/05/27).
8. Kanghee Lee, Fourier Optical Phenomena and Applications Using Ultra-Broadband Terahertz Waves (2013/05/23).
9. Minwoo Yi, Terahertz Wave Generation from Semiconductor Thin Films and its Applications (2012/05/02).
10. Junwoo Cho, Enhancement of Magneto-Optical Trap of Ytterbium Atom via Optical Repumping of Triplet PStates (2011/11/25).
11. Youngchan Kim, Development of High-Speed, High-Resolution, and Polarization-Sensitive Terahertz Spectroscopic Techniques (2011/04/04).
12. Jongseok Lim, Quantum Control in Two-Dimensional Fourier Transform Optical Spectroscopy (2011/04/29).
13. Sangkyung Lee, Analytical Coherent Controls of Alkali Atoms in Strong field regime (2010/11/25).
14. Kyung-Jin Jang, The Study of Coherent Optical and Acoustic Phonons in Correlated Electron Materials, (2010/05/07).

Publications:

1. Kangheun Kim and Jaewook Ahn, “Quantum tomography of Rydberg atom graphs by configurable ancillas," PRX Quantum 4, 020316 (2023).
2. Minhyuk Kim, Jaewook Ahn, Yunheung Song, Jongchul Moon, Heejeong Jeong, "Quantum computing with Rydberg atom graphs," J. Kor. Phys. Soc. 82, 827 (2023).
3. Hansub Hwang, Andrew Byun, Juyoung Park, Sylvain de Léséleuc, and Jaewook Ahn, "Optical tweezers throw and catch single atoms," Optica 10(3), 401 (2023).
4. Ignacio R. Sola, Vladimir S. Malinovsky, Jaewook Ahn, Seokmin Shin, and Bo Y. Chang, “Two-qubit atomic gates: Spatio-temporal control of Rydberg interaction," Nanoscale 14, 4325 (2023).
5. Andrew Byun, Minhyuk Kim, and Jaewook Ahn, “Finding the maximum independent sets of Platonic graphs using Rydberg atoms," PRX Quantum 3, 030305 (2022).
6. Seokho Jeong, Xiao-Feng Shi, Minhyuk Kim, and Jaewook Ahn, “Rydberg wire gates for universal quantum computation," Frontiers in Physics 10, 875673 (2022).
7. Minhyuk Kim, Kangheun Kim, Jaeyong Hwang, Eun-Gook Moon, and Jaewook Ahn, “Rydberg Quantum Wires for Maximum Independent Set Problems," Nature Physics 18, 755–759 (2022).
8. Daryl Ryan Chong, Minhyuk Kim, Jaewook Ahn, and Heejeong Jeong, "Machine learning identification of symmetrized base states of Rydberg atoms," Frontiers of Physics 17, 12504 (2021).
9. Yunheung Song, Minhyuk Kim, Hansub Hwang, Woojun Lee, and Jaewook Ahn, "Quantum simulation of Cayley-tree Ising Hamiltonians with three-dimensional Rydberg atoms," Physical Review Research 3, 013286 (2021).
10. Haeun Sun, Yunheung Song, Andrew Byun, Heejeong Jeong, and Jaewook Ahn, "Imaging three-dimensional single-atom arrays all at once," Optics Express 29(3), 4082 (2021).
11. Minhyuk Kim, Yunheung Song, Jaewan Kim, and Jaewook Ahn, "Quantum Ising Hamiltonian Programming in Trio, Quartet, and Sextet Qubit Systems," PRX Quantum 1, 020323 (2020).
12. Yunheung Song, Jongseok Lim, and Jaewook Ahn, "Berry-phase gates for fast and robust control of atomic clock states," Physical Review Research 2, 023045 (2020).
13. Hanlae Jo, Yunheung Song, Minhyuk Kim, and Jaewook Ahn, "Rydberg Atom Entanglements in the Weak Coupling Regime," Physical Review Letters 124, 033603 (2020).
14. Woojun Lee, Minhyuk Kim, Hanlae Jo, Yunheung Song, and Jaewook Ahn, "Coherent and dissipative dynamics of entangled quantum system of Rydberg atoms," Physical Review A 99, 043404 (2019).
15. Hanlae Jo, Yunheung Song, and Jaewook Ahn, "Qubit leakage suppression by ultrafast composite pulses," Optics Express 27(4), 3944 (2019).
16. Hyosub Kim, Minhyuk Kim, Woojun Lee, Jaewook Ahn, “Gerchberg-Saxton algorithm for tweezer-trap atom arrangements,” Optics Express 27, 2184 (2019).
17. Waranont Anukool, Jongseok Lim, Yunheung Song, and Jaewook Ahn, "Quantum computing systems: a brief overview," Journal of Korean Physical Society 73 (50th Anniversary Special Issue), 841 (2018).
18. Yunheung Song, Han-gyeol Lee, Hyosub Kim, Hanlae Jo, and Jaewook Ahn, "Subpicosecond X rotations of atomic clock states," Physical Review A 92, 052322 (2018).
19. Hyosub Kim, Yeje Park, Kyungtae Kim, H.-S. Sim, and Jaewook Ahn, "Detailed balance of thermalization dynamics in Rydberg atom quantum simulators," Physical Review Letters 120, 180502 (2018).
20. Minhyuk Kim, Kyungtae Kim, Dewen Cao, Fang Gao, Feng Shuang, and Jaewook Ahn, "Ultrafast spatial coherent control methods for transition pathway resolving spectroscopy of atomic rubidium," Optics Express 26, 1324 (2018).
21. Kyung-tae Kim and Jaewook Ahn, "Direct frequency-comb spectroscopy of 6s^2S_{1/2}-8s^2S_{1/2} twophoton transitions of atomic cesium," Journal of Physics B: Atomic, Molecular and Optical Physics 51, 035001 (2018).
22. Hanlae Jo, Han-gyeol Lee, Stephane Guerin, Jaewook Ahn, "Robust two-level system control by a detuned and chirped laser pulse," Physical Review A 96, 033403 (2017).
23. Han-gyeol Lee, Yunheung Song, and Jaewook Ahn, "Single-laser-pulse implementation of arbitrary ZYZ rotations of an atomic qubit," Physical Review A 96, 012326 (2017).
24. Woojun Lee, Hyosub Kim, and Jaewook Ahn, "Defect-free atomic array formation using the Hungarian matching algorithm," Physical Review A 95, 053424 (2017).
25. Hyosub Kim, Woojun Lee, Han-gyeol Lee, Hanlae Jo, Yunheung Song, and Jaewook Ahn, "In situ single-atom array synthesis by dynamic holographic optical tweezers," Nature Communications 7, 13317 (2016).
26. Han-gyeol Lee, Yunheung Song, Hyosub Kim, Hanlae Jo, and Jaewook Ahn, "Quantum dynamics of a two-state system induced by a chirped zero-area pulse," Physical Review A 93, 023423 (2016).
27. Woojun Lee, Hyosub Kim, and Jaewook Ahn, "Three-dimensional rearrangement of single atoms using actively controlled optical microtraps," Optics Express 24 (9), 9816 (2016).
28. Yunheung Song, Han-gyeol Lee, Hanlae Jo, and Jaewook Ahn, "Selective excitation in a three-state system using a hybrid adiabatic-nonadiabatic interaction", Physical Review A 94, 023412 (2016).
29. Daehoon Han, Kanghee Lee, Hanlae Jo, Yunheung Song, Minhyuk Kim, and Jaewook Ahn, "Terahertz polarization spectroscopy in the near-field zone of a sub-wavelength metal slit," Optics Express 24(19), 21276- 21285 (2016).
30. Muhan Choi, Byungsoo Kang, Yoonsik Yi, Seung Hoon Lee, Inbo Kim, Jae-Hyung Han, Minwoo Yi, Jaewook Ahn and Choon-Gi Choi, "Terahertz transmission resonances in complementary multilayered metamaterial with deep subwavelength interlayer spacing," Applied Physics Letters 108, 201103 (2016).
31. Han-gyeol Lee, Hyosub Kim, and Jaewook Ahn, "Ultrafast laser-driven Rabi oscillations of a Gaussian atom ensemble," Optics Letters 40 (4), 510 (2015).
32. Hyosub Kim, Woojun Lee, Han-gyeol Lee, and Jaewook Ahn, “Nonparaxial aberrations in the optical Talbot effect probed by quantum-dot fluorescence tomography," Physical Review A 91, 033817 (2015).
33. Hyosub Kim, Yunheung Song, Han-gyeol Lee, and Jaewook Ahn, "Rabi oscillations of Morris-Shore transformed N-state systems by elliptically polarized ultrafast laser pulses," Physical Review A 91, 053421 (2015).
34. Woojun Lee, Hyosub Kim, Kyungtae Kim, and Jaewook Ahn, "Coherent control of resonant two-photon transitions by counter-propagating ultrashort pulse pairs," Physical Review A 92, 033415 (2015).
35. Daehoon Han, Heejae Jeong, Yunheung Song, Jai Seok Ahn, and Jaewook Ahn, "Lattice vibrations of natural seraphinite gemstone probed by terahertz time-domain spectroscopy," IEEE Transactions on Terahertz Science and Technology 5, 1021 (2015).
36. Kanghee Lee, Hyun Joo Choi, Jaehyeon Son, Hyun-Sung Park, Jaewook Ahn, and Bumki Min, "THz near-field spectral encoding imaging using a rainbow metasurface," Scientific Reports 5, 14403 (2015).
37. Jongseok Lim, Han-gyeol Lee, Sangkyung Lee, Chang Yong Park, and Jaewook Ahn, "Ultrafast Ramsey interferometry to implement cold atomic qubit gates," Scientific Reports 4, 5867 (2014).
38. Sang-Gil Park, Kanghee Lee, Daehoon Han, Jaewook Ahn, and Ki-Hun Jeong, "Subwavelength silicon throughhole arrays as an all-dielectric broadband terahertz gradient index metamaterial," Applied Physics Letters 105, 091101 (2014).
39. Kanghee Lee, Minwoo Yi, Sang Eon Park, and Jaewook Ahn, "Phase-shift anomaly caused by sub-wavelengthscale metal slit or aperture diffraction," Optics Letters 38, 166 (2013).
40. Kanghee Lee, Jongseok Lim, and Jaewook Ahn, "Young's experiment with a double slit of sub-wavelength dimensions," Optics Express 21 (16), 18805 (2013).
41. Han-gyeol Lee, Hyosub Kim, Jongseok Lim, and Jaewook Ahn, "Quantum interference control of four-level diamond-configuration quantum system," Physical Review A 88, 053427 (2013).
42. Jongseok Lim, Han-gyeol Lee, and Jaewook Ahn, "Review of cold Rydberg atoms and their applications," Journal of Korean Physical Society 63 (4), 867-876 (2013).
43. Daehoon Han, Kanghee Lee, Jongseok Lim, Sei Sun Hong, Young Kie Kim, and Jaewook Ahn, "Terahertz lens made out of stone," Applied Optics 52(36), 8670 (2013).
44. Jongseok Lim, Kanghee Lee, and Jaewook Ahn, "Ultrafast Rabi flopping in a three-level energy ladder," Optics Letters 37 (16), 3378 (2012).
45. Minwoo Yi, Kanghee Lee, Jin Dong Song, and Jaewook Ahn, "Terahertz phase microscopy in the sub-wavelength regime," Applied Physics Letters 100, 161110 (2012).
46. Kanghee Lee, Minwoo Yi, Jin Dong Song, and Jaewook Ahn, "Polarization shaping of few-cycle terahertz wave," Optics Express 20, 12463 (2012).
47. Minwoo Yi, Hyosub Kim, Kyung Hwan Jin, Jong Chul Ye, and Jaewook Ahn, "Terahertz substance imaging by waveform shaping," Optics Express 20 (18), 20783 (2012).
48. Sangkyung Lee, Hangyeol Lee, Jongseok Lim, Junwoo Cho, Changyong Park, and Jaewook Ahn, "Coherent control of multiphoton-ionization passage of excited-state rubidium atoms," Physical Review A 86, 045402 (2012).
49. Hyosub Kim, Minwoo Yi, Xueyun Wang, Sang-Wook Cheong, and Jaewook Ahn, "Ultrafast terahertz transmission ellipsometry for YMn2O5 electromagnons," Applied Physics Letters 101, 242911 (2012).
50. Sang-Gil Park, Kyoung-Hwan Jin, Minwoo Yi, Jongchul Ye, Jaewook Ahn, and Ki-Hun Joeng, "Enhancement of terahertz pulse emission by optical nanoantenna," ACS Nano 6, 2026 (2012).
51. Junwoo Cho, Han-gyeol Lee, Sangkyung Lee, Jaewook Ahn, Won-Kyu Lee, Dai-Hyuk Yu, Sun Kyung Lee, and Changyong Park, "Optical repumping of triplet P-states enhances magneto-optical trapping of ytterbium atoms," Physical Review A 85, 035451 (2012).
52. Kyungnam Kim, Han-gyeol Lee, Jaewook Ahn, and Sohee Jeong, "Highly luminescing InP multishell semiconductor nanocrystals InP/ZnSe/ZnS," Applied Physics Letters 101, 073107 (2012).
53. Sangkyung Lee, Jongseok Lim, Chang Yong Park, and Jaewook Ahn, "Strong-field coherent control of 2+1 photon process in atomic sodium," Optics Express 19, 2266-2277 (2011).
54. Jongseok Lim, Han-gyeol Lee, Jae-uk Kim, Sangkyung Lee, and Jaewook Ahn, "Coherent transients mimicked by two-photon coherent control of three-level system," Physical Review A 83, 053429 (2011).
55. Youngchan Kim, Minwoo Yi, Bog. G. Kim, and Jaewook Ahn, "Investigation of THz birefringence measurement and calculation in Al2O3 and LiNbO3," Applied Optics 50 (18), 2906 (2011).
56. Jongseok Lim, Han-gyeol Lee, Sangkyung Lee, and Jaewook Ahn, "Quantum control in two-dimensional Fourier transform spectroscopy," Physical Review A 84, 013425 (2011).
57. Youngchan Kim, Kyung Hwan Jin, Jong Chul Ye, Jaewook Ahn, and Dae-Su Yee, "Wavelet power spectrum estimation for high-resolution terahertz time-domain spectroscopy," Journal of Optical Society of Korea 15, 103- 108 (2011).
58. Youngchan Kim, Jaewook Ahn, Bog G. Kim, and Daesu Yee, "Terahertz birefringence in zinc oxide," Japanese Journal of Applied Physics 50, 030203 (2011).
59. Kanghee Lee and Jaewook Ahn, "Single pixel coherent diffraction imaging," Applied Physics Letters 97, 241101 (2010, featured on cover). 60. Kanghee Lee, Kyung Hwan Jin, Jong Chul Ye, and Jaewook Ahn, "Coherent optical computing for T-ray imaging," Optics Letters, 35(4), 508 (2010).
61. Youngchan Kim, Dae-Su Yee, Minwoo Yi, and Jaewook Ahn, “High-speed high-resolution terahertz spectrometers,” Journal of Korean Physical Society 56, 255-261 (2010).
62. Minwoo Yi, Kanghee Lee, Jongseok Lim, Youngbin Hong, Young-Dahl Jho, and Jaewook Ahn "Terahertz waves emitted from an optical fiber," Optics Express 18, 13693 (2010).
63. Minwoo Yi, Kanghee Lee, Jongseok Lim, Youngbin Hong, Young-Dahl Jho, and Jaewook Ahn, "Terahertz waves emitted from an optical fiber," Optics Express 18, 13693–13699 (2010).
64. Kyeong-Jin Jang, Han-gyeol Lee, Sangkyung Lee, Jaewook Ahn, Jai Seok Ahn, Namjung Hur, and Sang-Wook Cheong, "Strong spin-lattice coupling in multiferroic hexagonal manganite YMnO3 probed by ultrafast optical spectroscopy," Applied Physics Letters 97, 031914 (2010).
65. Sangkyung Lee, Jongseok Lim, Jaewook Ahn, Vahe Hakobyan, and Stephane Guerin, "Strong-field two-level two-photon transition by phase shaping," Physical Review A 82, 023408 (2010).
66. Kyeong-Jin Jang, Jongseok Lim, Jaewook Ahn, Jihee Kim, Ki-Ju Yee, Jai Seok Ahn, and Sang-Wook Cheong, "Ultrafast coherent phonon study of dynamic spin lattice coupling in multiferroic LuMnO3," New Journal of Physics 12 023017 (2010).
67. Kyeong-Jin Jang, Jongseok Lim, Jaewook Ahn, Jihee Kim, Ki-Ju Yee, and Jai Seok Ahn, "Ultrafast near infrared spectroscopic study of coherent phonons of phase-separated manganite LPCMO," Physical Review B 81, 214416 (2010).
68. Sangkyung Lee, Jongseok Lim, and Jaewook Ahn, "Strong-field two-photon absorption in atomic cesium: an analytical control approach," Optics Express 17(9), 7648 (2009).
69. Sangkyung Lee, Kanghee Lee, and Jaewook Ahn, "Reversed peaks of saturated absorption spectra of atomic rubidium," Japanese Journal of Applied Physics 48, 032301 (2009).
70. Koji Nagata, Sangkyung Lee, and Jaewook Ahn, "Nonlocality improves Deutsch Algorithm," International Journal of Quantum Information 7(3), 604-614 (2009).
71. Jongseok Lim, Woo-Ram Lee, Heung-Sun Sim, Richard D Averitt, Joshua M Zide, Arthur C Gossard, and Jaewook Ahn, "Effect of non-uniform continuum density of states on Fano resonance in semiconductor quantum wells," Physical Review B 80, 035322 (2009).
72. Minwoo Yi, Youngchan Kim, Dae-Su Yee, and Jaewook Ahn, "Terahertz frequency spreading filter via onedimensional dielectric multilayer structures," Journal of Optical Society of Korea 13, 398-402 (2009).
73. Koji Nagata and Jaewook Ahn, "Violation of rotational invariance of local realistic models with two settings," Journal of the Korean Physical Society 53(4), 2216-2219 (2008).
74. Minwoo Yi, Kang Hee Lee, Inhee Maeng, Joo-Hiuk Son, R. D. Averitt, and Jaewook Ahn, "Tailoring the spectra of terahertz emission from CdTe and ZnTe electro-optic crystals," Japanese Journal of Applied Physics 47(1), 202-204 (2008).
75. Kang Hee Lee, Minwoo Yi, and Jaewook Ahn, "Modeling of THz frequency spectrum via optical rectification in THz time domain spectroscopy," Journal of the Korean Society for Nondestructive Testing (non-SCI) 28(2), 119- 124 (2008).
76. Youngchan Kim, Ki-Bok Kim, Dae-Su Yee, Minwoo Yi, and Jaewook Ahn, "High-speed high-resolution terahertz time-domain spectrometer," Hankook Kwanghak Hoeji (non-SCI) 19(5), 370-375 (2008).
77. Koji Nagata and Jaewook Ahn, "New method to reveal the conflict between local realism and quantum mechanics," Journal of the Korean Physical Society 53(6), 3793-3797 (2008).
78. Minwoo Yi, Kanghee Lee, and Jaewook Ahn, “Optimal molar fractions of ternary Zinc-blende terahertz emitters,” Journal of the Korean Physical Society 51(2), 475-479 (2007).
79. Jaewook Ahn, A. V. Efimov, R. D. Averitt, and A. J. Taylor, " Generation of programmable terahertz waveforms via optical rectification," in Nonlinear Optics: Materials, Fundamentals and Applications, Technical Digest (Optical Society of America, 2004).
80. Jaewook Ahn, A. V. Efimov, R. D. Averitt, and A. J. Taylor, “Terahertz waveform synthesis via optical rectification of shaped optical pulses,” Optics Express 11, 2486 (2003).
81. Jaewook Ahn, C. Rangan, D. N. Hutchinson, and P. H. Bucksbaum, “Quantum-state information retrieval in a Rydberg-atom data register,,” Physical Review A 66, 022312 (2002).
82. C. Rangan, Jaewook Ahn, D. N. Hutchinson, and P. H. Bucksbaum, “Control of Rydberg atoms for performing Grover’s search algorithm,” Journal of Modern Optics 49, 2339 (2002).
83. Jaewook Ahn, D. N. Hutchinson, C. Rangan, and P. H. Bucksbaum, “Quantum phase retrieval of a Rydberg wavepacket using a half-cycle pulse,” Physical Review Letters 86, 1179 (2001).
84. Jaewook Ahn, T. C. Weinacht, and P. H. Bucksbaum, “Information storage and retrieval through quantum phase,” Science 287, 463 (2000).
85. T. C. Weinacht, Jaewook Ahn, and P. H. Bucksbaum, “Controlling the shape of a quantum wavefunction,” Nature 397, 233 (1999).
86. Jaewook Ahn, R. Kopelman, and P. Argyrakis, “Hierachies of nonclassical reaction kinetics due to anisotropic confinements,” Journal of Chemical Physics 110, 2116 (1999).
87. T. C. Weinacht, Jaewook Ahn, and P. H. Bucksbaum, “Measurement of the amplitude and phase of a sculpted Rydberg waveacket,” Physical Review Letters 80, 5508 (1998); ibid 81, 3050 (1998).

Invited Talks (past 5 years):

1. 2023/06/05-09, "Quantum computing of NP problems with Rydberg atom graphs," APS-DAMOP 2023, Spokane, Washington, USA
2. 2023/06/01-02, "Rydberg atom quantum computer," Rydberg-atom Workshop, Oklahoma University, USA.
3. 2023/05/12, "Rydberg atom quantum computer," Colloquium, University of Seoul.
4. 2023/04/12, "Rydberg atom quantum computer," Colloquium, Yonsei University.
5. 2023/03/22-23, "Rydberg atom-graph quantum computing," UK-Korea Research Conference 2023, Pyungchang.
6. 2023/03/15, "Rydberg atom quantum computer," Colloquium, Ehwa Womans University.
7. 2023/03/10, "Quantum computing of NP-complete problems with Rydberg atom graphs," APS-DQI March meeting,
Las Vega, USA.
8. 2023/02/22, "Rydberg atom quantum computer," Colloquium, POSTECH
9. 2023/02/13-17, "Quantum computing of NP-complete problems using Rydberg atom graphs," 14th Asian
International Seminar on Atomic and Molecular Physics (AISAMP), Perth, Austrailia (online, plenary).
10. 2022/12/17-18, "Quantum computing of NP-complete problems using Rydberg atoms," 22th Asian Quantum Information Science Conference, Beijing (online, keynote).
11. 2022/12/07-10, "Quantum computing with Rydberg atom graphs," The 6th KIAS School and Workshop on Quantum Information and Thermodynamics, Busan
12. 2022/11/31-12/01, "Quantum computing of NP-complete problems using Rydberg atoms," International Symposium Series on Quantum Physics and Quantum Information Sciences, Beijing, China
13. 2022/09/29, "Making a quantum computer," Seoul National University, Department of Physics, Colloquium
14. 2022/09/26, "Quantum computing of classically difficult computational problems," Sino-Korea Forum on Quantum
Technology (online)
15. 2022/09/06, "Rydberg atoms for NP-complete problems," EMMI Workshop on Long-Range Ultracold Interactions 2022, Innsbruck, Austria
16. 2022/07/20, "Rydberg atoms for NP-complete problems," The 20th International Symposium on the Physics of Semiconductors and Applications (ISPSA2022), Jeu, Korea
17. 2022/07/01, "Rydberg atoms for NP-complete problems," International Conference on Quantum Computing (ICQC), Seoul, Korea
18. 2022/04/01, "Quantum simulation of Rydberg-atom arrays for Maximal Independent Set problems," Quantum Information Science and Technology (양자정보과학기술연구회), Korea (online)
19. 2022/03/08, "Rydberg atoms for quantum computing and quantum simulation," International Symposium on Creation of Advanced Photonic and Electronic Devices, Kyoto University, Japan (online)
20. 2022/03/23, "Rydberg atoms for quantum computing and quantum simulation," Giant Interactions in Rydberg Systems (GiRyd-2022), Mainz, Germany (online)
21. 2022/03/08, "Rydberg atoms for quantum computing and quantum simulation," International Symposium on Creation of Advanced Photonic and Electronic Devices, Kyoto University, Japan (online)
22. 2022/03/22-25, "Rydberg atoms for quantum computing and quantum simulation," Giant Interactions in Rydberg Systems (GiRyd-2022), Mainz, Germany (online)
23. 2022/02/16-18, "Rydberg atoms for NP-complete optimization problems," Optical Society of Korea Meeting, Daejeon, Korea
24. 2022/01/26-28, "Rydberg atoms for quantum computing and quantum simulation," Quantum Simulations and Computations with Cold Atoms (QSCCA-2022), Kolkata, India (Online)
25. 2021/10/28-31, "Rydberg quantum-wire approach to NP-complete optimization problems," International Workshop on Rydberg Atoms and Molecules, Wuhan, China (Online)
26. 2021/07/07, "Rydberg-atom programmable quantum simulator," Optical Society of Korea, Jeju, Korea (Online)
27. 2021/06/24-25, "Rydberg-atom programmable quantum simulator," Workshop on Quantum Information Science with Cold Atoms, Daejeon, Korea (Online)
28. 2020/12/22, "Quantum computing with big atoms," ETRI, Daejeon
29. 2020/11/25, "Quantum computing with big atoms," Pusan National University, colloquium, Busan
30. 2020/11/13, "Quantum computing with big atoms," quantum Information Science and Technology (양자정보과학기술연구회), KISTI, Daejeon
31. 2020/10/29, "Quantum annealing in Cayley trees of Rydberg atoms," Asia-Pacific Workshop on Trapped Quantum Systems, Osaka, Japan (online).
32. 2019/11/17-21, "Quantum Computing with Neutral Atoms in a Tweezer-Trap Array," Asia-Pacific Physics Conference, Kuching-Sarawak, Malaysia
33. 2019/07/11-12, "Rydberg atom entanglement in the weak coupling regime," International Conference on Quantum Computing, Seoul
34. 2019/06/16-17, "Atomic Physics and Quantum Computing," Quantum Information Science and Technology, SKKU, Suwon
35. 2019/06/13, "Atomic Physics and Quantum Computing," KAIST-KASI Network Meeting, KAIST
36. 2019/06/06-09, "Remote atom-pair entanglement through Rydberg-Rydberg interaction," 4th International workshop on Rydberg atoms and molecules, Hangzhou, China
37. 2019/05/22, "Atomic Physics and Quantum Computing," Colloquium, GIST, Gwangju
38. 2019/05/06-07, "Remote Atom-pair Entanglements through Rydberg-Rydberg Interaction," HKUST conference on Quantum Simulation of Novel Phenomena with Ultracold Atoms, HKUST, Hong Kong.

Patents:

1. Jaewook Ahn, Minhyuk Kim, Kanheun Kim, Jaeyong Hwang, "Method for solving maximum independent set problem using quantum computing," Application N. PCT/KR2022/000814 (2021-12-13).
2. Jaewook Ahn, Haeun Sun, Yunheung Song, Woo Jeong Byun, "3D holographic imaging apparatus and method for projecting multiple point light sources to one plane," Korea Patent, 10-2020-0187475 (2020-12-30).
3. Jaewook Ahn, Haeun Sun, Yunheung Song, "3D holographic imaging apparatus and method for projecting multiple point light sources to one plane, US Application N. 17/331.770 (2021-05-27).
4. Jaewook Ahn, Hyosub Kim, Woojun Lee, "Optically trapped atom transfer tweezer through hologram and method using the same," U.S. Patent 10409220 (2019-09-10).
5. Jaewook Ahn, Hyosub Kim, Woojun Lee, "Dynamic holographic single atom tweezers and tweezing method using thereof," Korea Patent 1017834040000 (2017-09-25).
6. Jaewook Ahn, Minwoo Yi, "Shaped terahertz functional imaging device by using spectral correlation", Korea Patent, 10-1441748 (2014-09-10).
7. Jaewook Ahn, Minwoo Yi, "Terahertz single-point fiber detector using thin electro-optical materials and manufacturing method thereof", Korea Patent, 10-1341706 (2013-12-09).
8. Jaewook Ahn, Kanghee Lee, “Imaging device for Terahertz Single- Pixel diffraction image", Korea Patent, 10- 1107853 (2012-01-12).
9. Jaewook Ahn, Kanghee Lee, Jong Chul Ye, Kyunghwan Jin, "Terahertz time domain spectral apparatus and image processing method for reducing sampling number", Korea Patent, 10-1077595 (2011-10-21).
10. Jaewook Ahn, Jong Chul Ye, Kyunghwan Jin, Kanghee Lee, “Terahertz time domain spectrum device and image apparatus using the spectrum device”, Korea Patent, 10-1074003 (2011-10-10).
11. Jaewook Ahn, Kanghee Lee, Minu Yi, Jongseok Lim,Youngdahl Cho, Yong-bin Hong, Jihoon Jeong, “Device for terahertz emitter using thin indium arsenic film optical fiber and manufacturing method thereof", Korea Patent, 10- 1067368 (2011-09-19).
12. Jaewook Ahn, Kanghee Lee, Minu Yi, “Contact type terahertz time domain spectrum device", Korea Patent, 10- 1017796 (2011-02-18).

CURRICULUM VITAE

Name : Hyunseok Jeong
Address : Department of Physics and Seoul National University
1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
Phone: +82 2 880 2635
Email: jeongh@snu.ac.kr | Website: https://physics.snu.ac.kr/hjeong

Education

· Ph.D. in Physics, Dec. 2003, Queen’s University Belfast, UK
· M.S. in Physics, Feb. 2000, Sogang University, Seoul, Korea
· B.S. in Physics, Feb. 1996, Sogang University, Seoul, Korea

Positions held

· 2008–Present: Assistant, Associate and Full Professor, Department of Physics and Astronomy, Seoul National University, Seoul, Korea
· 2008–2019: Director, Center for Macroscopic Quantum Control (Leader Project), National Research Foundation of Korea & Ministry of Science and ICT
· 2005–2008: Research Fellow, University of Queensland
· 2003–2004: Postdoctoral Research Fellow, University of Queensland

Awards and Honours

· SNU School of Natural Sciences Research Prize, 2017
· Excellent Research Achievement 2011, National Research Foundation of Korea, 2011
· POSCO TJ Park Junior Faculty Fellowship, POSCO TJ Park Foundation, 2009
· Institute of Physics (IoP) Quantum Electronics and Photonics Group PhD thesis Prize (first prize), 2004
· Overseas Research Students Awards, UK Government, 2001-2003

Editorships

· 2023-present: Editorial Board Member, Quantum Science and Technology (Institute of Physics)
· 2014-2017: Editor, Annals of Physics (Elsevier, New York)
· 2013-2014: Guest Editor, Optics Communications (Elsevier), Special Issue on Macroscopic Quantumness: Theory and Applications, Volume 337, Pages 1-110 (15 February 2015)

Research Interests

Quantum information theory, quantun foundations, quantum resource theory, faulttolerant quantum computing, quantum communication, quantum error correction and mitigation, quantum communcation, quantum metrology

LIST OF PUBLICATIONS

20 Selected Publications (Among >150 journal papers with more than 7100 citations)
Asterisked (*): corresponding-authored papers / Daggered (†): first-authored papers
*[1] S.H. Lie and H. Jeong, “Faithfulness and sensitivity for ancilla-assisted process tomography,” Phys. Rev. Lett. 130, 020802 (2023).
*[2] H. Kwon, Y. Lim, L. Jiang, H. Jeong and C. Oh, “Quantum metrological power of continuous- variable quantum networks,” Phys. Rev. Lett. 128, 180503 (2022).
*[3] S. Omkar, S.-H. Lee, Y. S. Teo, S.-W. Lee, and H. Jeong, "All-photonic architecture for scalable quantum computing with Greenberger-Horne-Zeilinger states," PRX Quantum 3, 030309 (2022).
*[4] S. Omkar, Y. S. Teo and H. Jeong, "Resource-efficient topological fault-tolerant quantum computation with hybrid entanglement of light," Phys. Rev. Lett. 125, 060501 (2020).
*[5] K.-C. Tan, S. Choi and H. Jeong, “Negativity of quasiprobability distributions as a measure of nonclassicality,” Phys. Rev. Lett. 124, 110404 (2020).
*[6] S. M. Lee, S.-W. Lee, H. Jeong, and H. S. Park, "Quantum Teleportation of Shared Quantum Secret," Phys. Rev. Lett. 124, 060501 (2020).
*[7] H. Kwon, K. C. Tan, T. Volkoff, and H. Jeong, "Nonclassicality as a Quantifiable Resource for Quantum Metrology," Phys. Rev. Lett. 122, 040503 (2019).
*[8] K. C. Tan and H. Jeong, "Entanglement as the symmetric portion of correlated coherence," Phys. Rev. Lett. 121, 220401 (2018).
*[9] K.-C. Tan, T. Volkoff, H. Kwon, and H. Jeong, "Quantifying the Coherence between Coherent States," Phys. Rev. Lett. 119, 190405 (2017) Editors' Suggestion.
*[10] K.-C. Tan, H. Kwon, C.-Y. Park, and H. Jeong, "Unified view of quantum correlations and quantum coherence", Phys. Rev. A 94, 022329 (2016).
*[11] S.W. Lee, K. Park, T.C. Ralph and H. Jeong, “Nearly deterministic Bell measurement for multiphoton qubits and its application to quantum information processing,” Phys. Rev. Lett. 114, 113603 (2015).
*†[12] H. Jeong, A. Zavatta, M. Kang, S.-W. Lee, L. S. Costanzo, S. Grandi, T. C. Ralph, and M. Bellini, "Generation of hybrid entanglement of light," Nature Photonics 8, 564 (2014) Cover Article for July Issue.
*†[13] H. Jeong, Y. Lim, and M. S. Kim, "Coarsening Measurement References and the Quantum-to- Classical Transition," Phys. Rev. Lett. 112, 010402 (2014).
[14] J. S. Neergaard-Nielsen, Y. Eto, C.-W. Lee, H. Jeong, and M. Sasaki, "Quantum tele-amplification with a continuous-variable superposition state," Nature Photonics 7, 439 (2013).
*[15] C.-W. Lee and H. Jeong, "Quantification of Macroscopic Quantum Superpositions within Phase Space," Phys. Rev. Lett. 106, 220401 (2011).
*†[16] H. Jeong, M. Paternostro, and T. C. Ralph, "Failure of local realism revealed by extremely coarse-grained measurements," Phys. Rev. Lett. 102, 060403 (2009).
*[17] M. S. Kim, H. Jeong, A. Zavatta, V. Parigi, and M. Bellini, "Scheme for proving the bosonic commutation relation using single-photon interference," Phys. Rev. Lett. 101, 260401 (2008).
[18] A. Ourjoumtsev, H. Jeong, R. Tualle-Brouri and Ph. Grangier, "Generation of optical 'Schrödinger cats' from photon number states," Nature 448, 784 (2007).
*[19] H. Jeong and T. C. Ralph, "Transfer of nonclassical properties from a microscopic superposition to macroscopic thermal states in the high temperature limit," Phys. Rev. Lett. 97, 100401 (2006).
†[20] H. Jeong and M. S. Kim, “Efficient quantum computation using coherent states,” Phys. Rev. A 65, 042305 (2002)

JUNHO SUH, Ph.D.

Pohang University of Science and Technology (POSTECH)
Department of Physics
77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea
phone: +82-54-279-2068, e-mail: junhosuh@postech.ac.kr

Education and Research

• Pohang University of Science and Technology (Mar. 2023 - present)
- Associate Professor of Physics
• Korea Research Institute of Standards and Science (Jul. 2014 - Mar. 2023)
- Principal Research Scientist
• California Institute of Technology (Apr. 2011 – Jun. 2014)
- Postdoctoral research
- Advisor : Prof. Keith Schwab
- Project : Manipulating the quantum fluctuations of a mechanical structure
• California Institute of Technology (Sep.2004 – Mar. 2011)
- Ph.D. in Physics (Mar. 2011)
- Advisor : Prof. Michael Roukes
- Thesis : Coupled dynamics of a nanomechanical resonator and superconducting quantum circuits
• Seoul National University, Korea (Mar. 1997 – Feb. 2001)
- B. S. in Physics
- Honors : Summa Cum Laude

Research Interests

• Mechanical quantum oscillators and their applications
• Superconducting quantum circuits
• Hybrid quantum systems

Publications

• J. Shin, Y. Ryu, M. A. Miri, S. B. Shim, H. Choi, A. Alù, J. Suh* , J. Cha* , “On-Chip Microwave Frequency Combs in a Superconducting Nanoelectromechanical Device”, Nano Lett. 22, 5459 (2022). • D. Radić, S. Choi, H. C. Park* , J. Suh, R. I. Shekhter, L. Y. Gorelik, “Nanomechanical cat states generated by a dc voltage-driven Cooper pair box qubit”, npj Quantum Inf. 8, 74 (2022).
• J. Kim, J. Cha, M. Kim, Y. Ryu, S. I. Park, J. D. Song, J. Suh* , “Nanomechanical Microwave Bolometry with Semiconducting Nanowires”, Phys. Rev. Appl. 15, 034075 (2021).
• J. Cha, H. Kim, J. Kim, S. B. Shim, J. Suh* , “Superconducting Nanoelectromechanical Transducer Resilient to Magnetic Fields”, Nano Lett. 21, 1800 (2021).
• M. Kim, J. Kim, Y. Hou, D. Yu, Y. J. Doh, B. Kim, K. W. Kim* , J. Suh* , “Nanomechanical characterization of quantum interference in a topological insulator nanowire”, Nature Comm. 10, 4522 (2019).
• M. Kim, J. Kim, I. H. Lee, W. H. Han, Y. C. Park, W. Y. Kim, B. Kim* , J. Suh* , “Quantum transport properties of single-crystalline Ag2Se0.5Te0.5 nanowires as a new topological material”, Nanoscale 11, 5171 (2019).
• G. Nazir, H. Kim, J. Kim, K. S. Kim, D. H. Shin, M. F. Khan, D. S. Lee, J. Y. Hwang, C. Hwang, J. Suh, J. Eom, S. Jung* “Ultimate limit in size and performance of WSe2 vertical diodes”, Nature Comm. 9, 5371 (2018).
• J. H. Lee, J. Suh, H. Seok*
, “Dissipation-driven nonclassical-state generation in optomechanics with squeezed light”, Phys. Rev. A 98, 043821 (2018).
• H. S. Byun, J. Jeong, K. Kim, S. G. Kim, S. B. Shim, J. Suh, H. Choi* , “Measuring angular momentum of px+ipy topological superfluids: A proposal”, Phys. Rev. B 98, 024518 (2018).
• S. Cho, S. U. Cho, M. Jo, J. Suh, H. C. Park, S. G. Kim, S. B. Shim* , Y. D. Park* , “Strong Two-Mode Parametric Interaction and Amplification in a Nanomechanical Resonator”, Phys. Rev. Appl. 9, 064023 (2018).
• M. Kim, J. Kim, J. Kim, S. Shim, B. Kim, J. Suh* , “Surface two-level state dissipation in single-crystalline gold nanomechanical resonators”, J. Korean Phys. Soc. 70, 225 (2017).
• P. D. Nation* , J. Suh, M. P. Blencowe, “Ultrastrong optomechanics incorporating the dynamical Casimir effect” Phys. Rev. A 93, 022510 (2016).
• C. U Lei, A. J. Weinstein, J. Suh, E. E. Wollman, A. Kronwald, F. Marquardt, A. A. Clerk, K. C. Schwab* , “Quantum nondemolition measurement of a quantum squeezed state beyond the 3 dB limit” Phys. Rev. Lett. 117, 100801 (2016).
• E. E. Wollman, C. U. Lei, A. J. Weinstein, J. Suh, A. Kronwald, F. Marquardt, A. A. Clerk, K. C. Schwab* , “Quantum squeezing of motion in a mechanical resonator” Science 349, 952 (2015).
• J. Suh, A. J. Weinstein, C. U. Lei, E. E. Wollman, S. K. Steinke, P. Meystre, A. A. Clerk, K. C. Schwab* , “Mechanically detecting and avoiding the quantum fluctuations of a microwave field” Science 344, 1262 (2014).
• A. J. Weinstein, C. U. Lei, E. E. Wollman, J. Suh, A. Metelmann, A. A. Clerk, and K. C. Schwab* , “Observation and interpretation of motional sideband asymmetry in a quantum electromechanical device” Phys. Rev. X 4, 041003 (2014).
• J. Suh, A. J. Weinstein, K. C. Schwab* , “Optomechanical effects of two-level systems in a back-action evading measurement of micro-mechanical motion” Appl. Phys. Lett. 103, 052604 (2013).
• J. Suh, M. D. Shaw, H. G. LeDuc, A. J. Weinstein, K. C. Schwab* , “Thermally induced parametric instability in a back-action evading measurement of a micromechanical quadrature near the zero-point level” Nano Letters 12, 6260 (2012).
• J. Suh, M. D. LaHaye, P. M. Echternach, K. C. Schwab, M. L. Roukes* , “Parametric amplification and back- action noise squeezing by a qubit-coupled nanomechanical resonator” Nano Letters 10, 3990 (2010).
• M. D. LaHaye, J. Suh, P. M. Echternach, K. C. Schwab, M. L. Roukes* , “Nanomechanical measurements of a superconducting qubit” Nature 459, 960 (2009)

Affiliation

Pohang University of Science and Techonology (POSTECH)

Education

Ph.D. in Optical Engineering, University of Rochester 2011
M.S. in Physics, Hanyang University 2002
B.S. in Physics, Hanyang University 2002

Professional Career

Associate/Assitant Professor, Physics, POSTECH 2022 – present
Associate Research Scientist/ Post-doctoral Associate, Applied Physics, Yale University, 2014 – 2015
ADVANCED PHOTONIC MICROSYSTEMS, SANDIA NATIONAL LABORATORIES ALBUQUERQUE, NM, USA
Post-doctoral Appointee, Advanced photonic microsystems, Sandia National Lab., NM 2011 – 2013

Selected Publications

• Dongjin Lee, Kyungdeuk Park, Woncheol Shin, and Heedeuk Shin, “Translation from a dist inguishable to indistinguishable two-photon state,” ACS Photonics, accepted.
• Woncheol Shin , Kyungdeuk Park , Hyeongpin Kim , Dongjin Lee , Kiwon Kwon and He edeuk Shin, “Photon-pair generation in a lossy waveguide,” Nanophotonics 12, 531-538 (20 23).
• Hyeongpin Kim and Heedeuk Shin, “Active information manipulation via optically driven a coustic-wave interference,” Nano Letters 21, 7270 (2021).
• Sebae Park†, Dongjin Lee†, Kyungdeuk Park, Heedeuk Shin*, Youngsun Choi, and Jae Wo ong Yoon, “Optical energy-difference conservation in a synthetic anti-PT symmetric system,” Physical Review Letters 127, 083601 (2021). [† These authors contributed equally to this work. *Corresponding author]
• Eric A. Kittlaus†, Heedeuk Shin†, and Peter T. Rakich, “Large Brillouin amplification in si licon,” Nature Photonics 10, 463 (2016). [† These authors contributed equally to this wor k.]
• Heedeuk Shin, Jonathan Cox, Robert Jarecki, Andrew Starbuck, Zheng Wang, and Peter T. Rakich, “Control of coherent information via on chip photonic-phononic emitter-receivers,” Nature Communications 6, 6427 (2015).

CONTACT INFORMATION

Ph.D. (Associate Prof.) Je-Hyung Kim
Ulsan National Institute of Science and Technology
Department of Physics and School of Natural Science
(ORCID Profile: http://orcid.org/0000-0002-6894-9285)
50 Unist-gil, (BLDG 108 / #501-8), Ulsan 44919 Republic of Korea
Phone: +82) 52-217-2212
E-mail: jehyungkim@unist.ac.kr (Group web: http://qupid.unist.ac.kr)
Nationality: Republic of Korea

EDUCATION

Graduate Education:
(Mar. 2008 ~ Feb. 2014) Ph. D. in Physics, KAIST, Republic of Korea (PI: Prof. Yong-Hoon Cho)
• Thesis: Group III-nitride based self-assembled quantum dots and single quantum dots in nanostructures for quantum photonics
• Research area: Solid-state quantum photonics
• Research subject: Fabrication and optical characterization of semiconductor quantum structures for efficient solid-state single photon sources.
Undergraduate Education:
(Mar. 2001 ~ Aug. 2007) B.S. Physics in Physics, Korea University, Seoul, Korea

WORK EXPERIENCES

Sep. 2021 ~ Present Associate professor Department of Physics, UNIST (http://qupid.unist.ac.kr)
Aug. 2017 ~ Sep. 2021 Assistant professor Department of Physics, UNIST
Sep. 2014 ~ July. 2017 Postdoctoral researcher Department of Electrical and Computer engineering, University of Maryland (PI: Prof. Edo Waks’ group)
Feb. 2014 ~ Aug. 2014 Postdoctoral researcher Department of Physics, KAIST (PI: Prof. Yong-Hoon Cho)

RESEARCH INTERESTS

Generation / Manipulation / Integration of photonic and spin qubits from solid-state quantum emitters and their applications for quantum information science
Research topic:
• Solid-state quantum emitters
• Cavity quantum electrodynamics
• Quantum entanglement
• Integrated quantum photonics

PUBLICATIONS

[37] "Quantum dots for photonic quantum information technology", T. Heindel, J.-H. Kim, N. Gregersen, A. Rastelli, and S. Reitzenstein*, Advances in Optics and Photonics 15, 613 (2023)
[36] "Room-temperature continuous-wave indirect-bandgap transition lasing in an ultra-thin WS2 disk", J. Sung, D. Shin, H. H. Cho, S. W. Lee, S. Park, Y. D. Kim, J. S. Moon, J.-H. Kim, and SuHyun Gong*, Nature Photonics 16, 792(2022)
[35] "Plug-and-play single-photon devices with efficient fiber-quantum dot interface", W. B. Jeon, J. S. Moon, K.-Y. Kim, Y.-H. Ko, C. J. K. Richardson, E. Waks, J.-H. Kim*, Adv. Quantum. Tech. 2200022 (2022)
[34] "InAsP Quantum Dot-Embedded InP Nanowires toward Silicon Photonic Applications", T.-Y. Chang, H. Kim,* W. A. Hubbard, K. M. Azizur-Rahman, J. J. Ju, J.-H. Kim, W.-J. Lee,* and D. Huffaker, ACS Appl. Mater.& Inter. 14, 12488 (2022)
[33] "Strong zero-phonon transition from point defect-stacking fault complexes in silicon carbide nanowires", J. H. Lee, W. B. Jeon, J. S. Moon, J. Lee, S.-W. Han, Z. Bodrog, A. Gali, S.-Y. Lee, and J.-H. Kim*, Nano Letters 21, 9187 (2021)
[32] "Temporal shaping of single photons by engineering exciton dynamics in a single quantum dot", K. -Y. Kim, C. J. K. Richardson, E. Waks, and J.-H Kim*, APL Photonics 6, 080801 (2021)
[31] "High resolution, high contrast optical interface for defect qubits", J. S. Moon, H. Lee, J. H. Lee, W. B. Jeon, D. Lee, J. Lee, S. Paik, S.-W. Han, R. Reuter, A. Denisenko, J. Wrachtrup, S.-Y. Lee, and J.-H Kim*, ACS Photonics 8, 2642 (2021)
[30] "High-Crystalline Monolayer Transition Metal Dichalcogenides Films for Wafer-Scale Electronics", M. Kim, J. Seo, J. Kim, J. S. Moon, J. Lee, J.-H. Kim, J. Kang*, and H. Park*, ACS Nano 15, 3038 (2021)
[29] "Optical Repumping of Resonantly Excited Quantum Emitters in Hexagonal Boron Nitride", S. J.U. White, N. Duong, A. S. Solntsev, J.-H. Kim, M. Kianinia, and I. Aharonovich, Phys. Rev. Applied 14, 044017 (2020)
[28] "Hybrid integration methods for on-chip quantum photonics", J.‐H. Kim*, S. Aghaeimebodi, J. Carolan, D. Englund, and E. Waks, Optica 7, 291 (2020) - 2021 Selected as Top-downloaded paper in two research fields of “Integrated photonics” and “Quantum Information”, Selected as 2020-2021 Top-cited paper in Optica
[27] "Position and frequency control of strain-induced quantum emitters in WSe2 monolayers", H. Kim, J. S. Moon, G. Noh, J. Lee, and J.-H. Kim*, Nano Letters 19, 7534 (2019)
[26] “Origin of spectral brightness variations in InAs/InP quantum dot telecom single photon emitters”, C. J. K. Richardson*, R. P. Leavitt, J.-H. Kim, E. Waks, I. Arslan, and B. Arey, J. Vac. Sci.Technol B. PAULH2019, 011202 (2019)
[25] “A silicon photonic add-drop filter for quantum emitters”, S. Aghaeimeibodi, J.-H. Kim, C.-M. Lee, M. A. Buyukkaya, C. Richardson, and E. Waks*, Opt. Exp. 27, 16882 (2019)
[24] “Direct Transfer of Light's Orbital Angular Momentum onto Non-resonantly Excited Polariton Superfluid”, B. Y. Oh, M.-S. Kwon, S.-H. Gong, J.-H. Kim, H. K. Kang, S. Kang, J. D. Song, H. Choi*, and Y.-H. Cho*, Phys. Rev. Lett. 122, 045302 (2019)
[23] “Radiative enhancement of single quantum emitters in WSe2 monolayers using site-controlled metallic nano-pillars”, T. Cai, J.-H. Kim, Z. Yang, S. Dutta, S. Aghaeimeibodi, and E. Waks*, ACS Photonics 5,3466 (2018)
[22] "Integration of quantum dots with lithium niobate photonics", S. Aghaeimeibodi, B. Desiatov, J.- H. Kim, C.-M. Lee, M. A. Buyukkaya, A. Karasahin, C. J. K. Richardson, R. P. Leavitt, M. Lončar, and E. Waks*, Appl. Phys. Lett. 113, 221102 (2018)
[21] “Near-infrared emission from defect states in few-layer phosphorene”, S. Aghaeimeibodi, J.-H. Kim, E. Waks*, arXiv:1706.10189 (2017)
[20] “Super-radiant emission of quantum dots in a nanophotonc waveguide”, J.-H. Kim*, S. Aghaeimeibodi, C. J. K. Richardson, R. P. Leavitt, and E. Waks*, Nano Letters 18, 4734 (2018)
[19] “Active control of photon recycling for tunable optoelectronic devices”, Y. Xu, E. M. Tennyson, J.-H. Kim, S. Barik, J. Murray, E. Waks, M. S. Leite, and J. N. Munday*, Adv. Opt. Materials, 6, 1701323 (2018)
[18] “Site-Selective, Two-Photon Plasmonic Nanofocusing on a Single Quantum Dot for Near-RoomTemperature Operation”, S.-H. Gong, S. Kim, J.-H. Kim, J.-H. Cho, and Y.-H. Cho*, ACS Photonics 5,711 (2018)
[17] “Hybrid integration of solid-state quantum emitters on a silicon photonic chip”, J.-H. Kim*, S. Aghaeimeibodi, C. J. K. Richardson, R. P. Leavitt, and E. Waks*, Nano letters, 17, 7394 (2017)- Highlighted in "Nature Photonics Research Highlight" [doi:10.1038/s41566-017-0082-3]
[16] “Two-photon interference from the far-field emission of chip-integrated cavity-coupled emitters”, J.-H. Kim, C. J. K. Richardson, R. P. Leavitt, and E. Waks*, Nano letters, 16, 7061 (2016)
[15] “Two-photon interference from a bright single-photon source at telecom wavelengths”, J.-H. Kim, T. Cai, C. J. K. Richardson, R. P. Leavitt, and E. Waks*, Optica, 3, 577 (2016)
[14] “Self-aligned deterministic coupling of single quantum emitter to nanofocused plasmonic Modes”, S.-H. Gong, J.-H. Kim, Y.-H. Ko, C. Rodriguez, J. Shin, Y.-H. Lee, L. S. Dang, X. Zhang, and Y.-H. Cho*, Proc Natl Acad Sci, 112, 5280 (2015)
[13] “Red color emitting InGaN/GaN double heterostructures on GaN nano-pyramid structures”, Y.-H. Ko, J.-H. Kim, S.-H. Gong, J. Kim, T. Kim, Y.-H. Cho*, ACS Photonics, 2, 515 (2015)
[12] “Toward highly radiative white light emitting nanostructures: a new approach for dislocationand polarization fields-eliminated GaN/InGaN core-shell nanostructures”, Y. H. Ko, J.-H. Kim, S. H. Gong, S. M. Ko, and Y.-H. Cho*, Nanoscale, 6, 14213 (2014)
[11] “Stark effect in ensembles of polar (0001) Al0.5Ga0.5N/GaN quantum dots and comparison with semipolar (11-22) ones”, J. Brault, A. Kahouli, D. Maghraoui, B. Damilano, P. de Mierry, M. Korytov, M. Leroux, J. -H. Kim, and Y.-H. Cho*, Journal of Applied Physics 116, 034308 (2014).
[10] “Strain- and surface-induced modification of photoluminescence from self-assembled GaN/Al0.5Ga0.5N quantum dots: strong effect of capping layer and atmospheric condition”, J.-H. Kim, D. Elmaghraoui, M. Korytov, M. Leroux, P. Vennéguès, S. Jaziri,J. Brault, and Y.-H. Cho*, Nanotechnology 25, 305703 (2014)
[9] “Ultrafast single photon emitting quantum photonic structures based on a nano-obelisk”, J.-H. Kim, Y. H. Ko, S. H. Gong, S. M. Ko, and Y.-H. Cho*, Scientific Reports 3, 2150 (2013).
[8] “Facile synthetic method for pristine graphene quantum dots and graphene oxide quantum dots: origin of blue and green luminescence”, F. Liu, M. H. Jang, H. D. Ha, J.-H. Kim, Y. H. Cho, and T. S. Seo*, Advanced Materials 25, 3657 (2013)
[7] “Graphene oxide/N-methyl-2-pyrrolidone charge-transfer complexes for molecular detection”, G. Q. Xin, S. H. Gong, N. H. Kim, J.-H. Kim, W. T. Hwang, J. W. Nam, Y.-H. Cho, S. M. Cho, H. Y. Chae*, Sensors and Actuators B: Chemical 176, 81 (2013)
[6] "Structural and photoluminescence studies of highly crystaline un-annealed ZnO nanorods arrays synthesized by hydrohtermal technique", A. Gokarna*, J.-H. Kim, F. Leroy, G. Partriarche, P. Roussel, Z. Bougrioua, C. Rodriguez, E. Dogheche, and Y. H. Cho, Journal of Luminescence, 144, 234 (2013)
[5] “Photoexcitations from intrachain and interchain excitons of surface plasmon mediated conjugated polymers for PLED”, K. H. Cho, K. C. Choi*, J.-H. Kim, and Y.-H. Cho, IEEE/OSA Journal of Display Technology, 8, 439 (2012)
[4] “Growth mechanism of catalyst-free and mask-free heteroepitaxial GaN submicrometer- and micrometer-sized rods under biaxial strain: variation of surface energy and adatom kinetics”, S.- M. Ko, J.-H. Kim, Y.-H. Ko, Y. H. Chang, Y. H. Kim, J. M. Yoon, J. Y. Lee, and Y.-H. Cho*, Crystal Growth & Design, 12, 3838 (2012)
[3] “Dislocation-eliminating chemical control method for high-efficiency GaN-based light emitting nanostructures”, J.-H. Kim, C. S. Oh, Y.-H. Ko, S.-M. Ko, K.-Y. Park, M. Jeong, J. Y. Lee, and Y.- H. Cho*, Crystal Growth & Design, 12, 1292 (2012)
[2] “Electrically driven quantum dot/wire/well hybrid light-emitting diodes”, Y.-H. Ko, J.-H. Kim, L.- H. Jin, S.-M. Ko, B.-J. Kwon, J. Kim, T. Kim, and Y.-H. Cho*, Advanced Materials, 23, 5364 (2011)
[1] “Carrier transfer and recombination dynamics of long-lived and broad band emission from multistacked GaN/AlGaN quantum dots”, J.-H. Kim, B.-J. Kwon Y. -H. Cho*, T. Huault, M. Leroux, and J. Brault, Applied Physics Letter, 97, 061905 (2010)

BOOK CHAPTERS

[1] Group III-nitride nanostructures for light-emitting devices and beyond, Je-Hyung Kim, Young-Ho Ko, and Yong-Hoon Cho, invited book chapter in "III-Nitride Materials, Devices and Nanostructures," edited by Zhe Chuan FENG, World Scientific Press (DOI: 10.1142/9781786343192_0011) (2017)

PATENTS

[1] Nano Structure having quantum structures, Method for manufacturing thereof and photonemitting devices having the same, J.-H. Kim and Y.-H. Cho (Registration No. 10-1536995-0000, Korea)
[2] Electron Emitter and Light Emitting Apparatus Comprising Same, Y.-H. Cho, J.-H. Cho and J.-H. Kim (International Application No. PCT/KR2016/000630)
[3] Quantum light source and manufacturing method of the same, J.-H. Kim, H.-J. Kim, J. S. Moon (Registration No. 10-2045064-0000, Korea)
[4] Quantum light source, J.-H. Kim, W. B. Jeon (Registration No. 10- 2299787, Korea)
[5] Quantum light source manufacturing method and quantum light transmission apparatus using quantum light source, J.-H. Kim, W. B. Jeon (Registration No. 10- 2294478 -0000, Korea)
[6] Quantum light source based on efficient vertical beaming from photonic structures with hole arrays, J.-H. Kim, W. B. Jeon (International Application No. PCT/KR2020/017953)

Dr. Jae­yoon Choi

Korea Advanced Institute of Science and Technology
Daehak­ro 291, Yuseong­gu, 34141 Daegeon, South Korea
email: jaeyoon.choi@kaist.ac.kr
Phone: +82 042 350 2541

EDUCATION

Seoul National University, Seoul, Korea
Doctor of Philosophy in Physics, February 2014
Thesis: Thermal phases fluctuations in a quasi­2D Bose Einstein condensate.
Research Advisor: Prof. Dr. Yong­il Shin
Korea Advanced Institute of Science and Technology, Daejeon, Korea
Bachelor of Science in Physics, February 2009 (Summa Cum Laude)
Thesis: Low temperature resistivity curve of Polyaniline.
Research Advisor: Prof. Dr. Eunseong Kim

RESEARCH EXPERIENCE

Department of Physics, KAIST
Associate Professor (March 2022 ­ Present)
Assistant Professor (July 2017 ­February 2022)
Research topics: Quantum simulations with neutral atoms in optical lattices.
Max Planck Institute of Quantum Optics
Postdoctoral associate (October 2014 ­ July 2017)
Research advisor: Prof. Dr. Immanuel Bloch
Research topics: Many­body localization in the Bose­Hubbard Hamiltonian.
Center for Correlated Electron System, SNU
Postdoctoral associate (March 2014 ­ October 2014)
Research advisor: Prof. Dr. Tae Won Noh and Prof. Dr. Kyung Wan Kim
Research topics: Developing terahertz laser system.
Quantum Gas Laboratory, SNU
Research assistant (September 2009 ­ February 2014)
Research advisor: Prof. Dr. Yong­il Shin
Research topics: Berezinskii­Kosterlitz­Thouless superfluid of atomic gases.
Topological Skyrmion spin texture in spinor condensates.
Center for Supersolid and Quantum Matter Research, KAIST
Research assistant (September 2008 ­ January 2009)
Research advisor: Prof. Dr. EunSeong Kim
Research topics: Synthesizing and characterizing conducting polymer

MAJOR ACHIEVEMENTS

• First realization of Lithium­7 quantum gas microscope.
• First realization of strongly ferromagnetic spinor condensates of Lithium­7 atom.
• Many­body localization (MBL) in two dimensions.
• Evidence of diverging length scale near the MBL phase transition.
• First realization of Bose­Einstein condensates of atomic gases in Korea.

RECENT PUBLICATIONS

1. K. Kwon, K. Kim, J. Hur, S. Huh, and J. Choi† , “Site­resolved imaging of a bosonic Mott insulator of 7Li atoms ” Physical Review A 105, 033323 (2022).
2. K. Kwon, K. Mukherjee, S. Huh, K. Kim, S. I. Mistakidis, D. K. Maity, P. G. Kevrekidis, S. Majumder, P. Schmelcher, and J. Choi† , “Spontaneous Formation of Star­Shaped Surface Patterns in a driven Bose­Einstein Condensate ” Physical Review Letters 127, 113001 (2021).
3. K. Kim, J. Hur, S. Huh, S. Choi, and J. Choi† , “Emission of Spin­correlated Matter­wave jets from Spinor Bose­Einstein Condensates ” Physical Review Letters 127, 043401 (2021).
4. J. H. Lee, H. Jung, J. Choi, and J. Mun, “Transporting cold atoms using an optically compensated zoom lens ” Physical Review A 102, 063106 (2020).
5. S. Huh, K. Kim, K. Kwon, and J. Choi† , “Observation of a strongly ferromagnetic spinor Bose­Einstein condensate ” Physical Review Research 2, 033471 (2020) [Editor’s Suggestion].
6. A. Rubio­Abadal, J. Choi† , J. Zeiher, S. Hollerith, J. Rui, I. Bloch, and C. Gross, “Probing many­body localization in the presence of a quantum bath ” Physical Review X 9, 041017 (2019).
7. K. Kim, S. Huh, K. Kwon, and J. Choi† “Rapid production of large 7Li Bose­Einstein condensates using D1 gray molasses ” Physical Review A 99, 053604 (2019).
8. J. Zeiher, J. Choi, A. Rubio­Abadal, T. Pohl, R. van Bijnen, I. Bloch, C. Gross, “Coherent many­body spin dynamics in a long­range interacting Ising chain” Physical Review X 7, 041063 (2017).
9. J. Choi† , S. Hild, J. Zeiher, P. Schauß, A. Rubio­Abadal, T. Yefsah, V. Khemani, D. A. Huse, I. Bloch, and C. Gross, “Exploring the many­body localization transition in two dimensions” Science 352, 1547 (2016) [Cover story].
10. J. Zeiher, R. Bijnen, P. Schauß, S. Hild, J. Choi, T. Pohl, I. Bloch, and C. Gross, “Many­body interferometry of a Rydberg­dressed spin lattice” Nature Physics 12, 1095 (2016). † Corresponding Author.

NVITED TALKS AND SEMINARS

1. Asia­Pacific Workshop on Trapped Quantum Systems 2022, Online. April 2022.
2. Colloquium at Korea University. Ocotober 2021.
3. International Conference on Quantum Computing, Seoul. June 2021.
4. Colloquium at POSTECH. March 2021.
5. US­Korea Conference, virtual. December, 2020.
6. International Workshop on Quantum Thermodynamics, Jeju. July, 2019.
7. American Physical Society March Meeting, Boston. March, 2019.
8. Colloquium at Chonnam National University. April 2018.
9. Yukawa Institute for Theoretical Physics Workshop, Kyoto. September, 2017.

AWARDS, HONORS, AND FELLOWSHIPS

1. Marie­Skłodowska­Curie fellowship from European Commission (2015 ­ 2017).
2. Young physicist award from Korean Physical Society (2014).
3. Award for outstanding doctoral thesis in college of natural science at Seoul National University (2014).
4. Fellowship from the National Research Foundation, Global Ph.D fellow (2011­2014).
5. Fellowship from Usan YukYeonghoe Foundation (2009­2010).
6. Fellowship from the Korea Foundation for Advanced Studies (2007­2009).
7. Honored student in the KAIST physics department (2006­2009).
8. Fellowship from the National Science and Technology Scholarship (2005­2009).

PERSONAL

Name: Hyun-Woo Lee
Date of Birth: 30 July 1969
Nationality: Republic of Korea
Work Address: Department of Physics, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
Office Phone: +82-54-279-2092
E-mail: HWL@postech.ac.kr
Web page: http://sites.google.com/site/hyunwoolee1

EDUCATION

Ph.D. 1996, Massachusetts Institute of Technology Thesis Advisor: Prof. Leonid S. Levitov Thesis Title: “Electric current fluctuations in mesoscopic systems”
B.S. 1990, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea

EMPLOYMENT

2002.08-Present Department of Physics, POSTECH (tenured in 2012)
2002.04-2002.08 BK Assistant Professor, School of Physics, Seoul National University, Korea
2001.11-2002.03 KIAS Assistant Professor, School of Physics, Korea Institute for Advanced Study, Korea
1999.11-2001.10 Research Fellow, School of Physics, Korea Institute for Advanced Study, Korea (position for military service)
1996.07-1999.10 Postdoctoral Fellow, Center for Theoretical Physics, Seoul National University, Korea (position for military service)

CURRENT RESEARCH TOPICS

⚫ Orbital Hall effect, orbital torque
⚫ Spin torque, spin motive force, and spin-orbit coupling effects
⚫ Spin transport in topological matters and 2D materials

AWARDS & RECOGNITIONS

2022.12.01 Seokcheon Chair Professor, appointed in 3-year term (POSTECH)
2019.04.24 Academic Achievement Award (The Korean Physics Society)
2017.09.18 National Academy of Sciences Award (The National Academy of Sciences, Republic of Korea)
2014.11.28 Academic Achievement Award (The Korean Magnetics Society)
2013.03.01 Hongdeok Young Chair Professor, appointed in 3-year term (POSTECH)
2010.09.30 Scientist of the Month Award (Ministry of Education, Science, and Technology, Korea)
2010.02.17 Outstanding Research Award (POSTECH)

RESEARCH HIGHLIGHT

⚫ ~150 publications
◼ Including 3 Nature, 2 Nature Physics (one as News & Views), 2 Nature Nanotechnology, 1 Nature Materials (one as News & Views), 1 Physics Reports, 3 Nature Communications, 14 Physical Review Letters, 1 Nano Letters
⚫ h-index: 39 (Web of science), 47 (Google scholar)
⚫ # of citations: 6600 (Web of Science), 9600 (Google Scholar)

SELECTED PUBLICATIONS

⚫ Young-Gwan Choi, Daegeun Jo, Kyung-Hun Ko, Dongwook Go, Kyung-Han Kim, Hee Gyum Park, Changyoung Kim, Byoung-Chul Min, Gyung-Min Choi, and Hyun-Woo Lee Observation of the orbital Hall effect in a light metal Ti Nature 619, 52 (2023)
⚫ Seungyun Han, Hyun-Woo Lee, and Kyoung-Whan Kim Orbital dynamics in centrosymmetric systems Physical Review Letters 128, 176601 (2022)
⚫ Joolee Son, Kyung-Han Kim, Y. H. Ahn, Hyun-Woo Lee, and Jieun Lee Strain-engineering of Berry curvature dipole and valley magnetization in monolayer MoS2 Physical Review Letters 123, 036806 (2019)
⚫ Dongwook Go, Daegeun Jo, Changyoung Kim, and Hyun-Woo Lee Intrinsic spin and orbital Hall effects from orbital texture Physical Review Letters 121, 086602 (2018)
⚫ Kyoung-Whan Kim, Soo-Man Seo, Jisu Ryu, Kyung-Jin Lee, and Hyun-Woo Lee Magnetization dynamics induced by in-plane currents in ultrathin magnetic nanostructures with Rashba spin-orbit coupling Physical Review B 85, 180404(R) (2012) (*) Cited 202 times (Web of Science), 252 times (Google Scholar)

Gil-Ho Lee

- Address: RIST 1357, 67 Cheongam-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do, Republic of Korea
- E-mail: lghman@postech.ac.kr
- Office: +82-54-279-2064
- Google Scholar
- Group webpage: http://ghleelab.postech.ac.kr

Academic Employment

2021.9-present Associate Professor Dept. of Physics, POSTECH, Pohang, Republic of Korea
2017.7-2021.8 Assistant Professor Dept. of Physics, POSTECH, Pohang, Republic of Korea
2014.8-2017.6 Postdoctoral researcher Dept. of Physics, Harvard University, Cambridge, MA 02138, USA Advisor: Prof. Philip Kim
2014.2–2014.7 Postdoctoral researcher Dept. of Physics, POSTECH, Pohang, Republic of Korea Advisor: Prof. Hu-Jong Lee

Education

2007.9–2014.2 Ph. D. in Physics
Dept. of Physics, POSTECH, Pohang, Republic of Korea
Advisor: Prof. Hu-Jong Lee

2003.3–2007.8 B. S. in Chemistry and Physics (double major)
Dept. of Chemistry, POSTECH, Pohang, Republic of Korea

Courses taugh

Classical mechanics, Quantum mechanics, Quantum electronic transport, Physics experiment, Research trend in solid state physics, Research trend in 2D materials

Research field

1. Quantum transport and macroscopic quantum phenomena of a superconductor/graphene hybrid nano-device
2. Development of ultrabroad-bandwidth single-photon detection technology based on graphene Josephson junction
3. Topological superconductivity of superconductor-quantum Hall heterostructures
4. Majorana edge states in a quantum anomalous Hall system of MBE-grown magnetically doped 2D topological insulators
5. Relativistic electronic optics phenomena in high-quality graphene

Honors

1. Bom-Bi Physics Award (Korean Physics Society, 2018.04.25)
2. Young Professor Fellowship (POSCO TJ Park Foundation, 2018.10.26)
3. Samsung Humantech Paper Award (Samsung, 2021.02.09)
4. 자랑스러운 포스테키안상 (연구부문) (POSTECH, 2021.12.01)
5. 에쓰-오일과학문화재단 차세대 과학자상 (물리) (한림원, 2021.12.02)
6. 한림원 차세대회원(Y-KAST) (한림원, 2021.12.14)
7. 젊은과학자상 (과학기술정보통신부, 2022.12.15)

Curriculum Vitae Bumjoon Kim, Ph.

Department of Physics, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| +82-54-279-2073 | bjkim6@postech.ac.kr | http://sssg. postech.ac.kr |

Education

2005 Ph. D. in Physics, Seoul National University (Thesis advisor: Prof. Se-Jung Oh)
2001 M. S. in Physics, Seoul National University
1999 B. S. in Physics, Korea Advanced Institute of Science and Technology (KAIST)

Academic Appointments

Jun. 2017 – present Associate Director Center for Low-Dimensional Electronic Systems Institute for Basic Science
Sep. 2021– present Professor Department of Physics Pohang University of Science and Technology
Dec. 2016 – Aug. 2021 Associate Professor Department of Physics Pohang University of Science and Technology
Jul. 2013 – Nov. 2016 Group Leader Max Planck Institute for Solid State Research Department of Solid State Spectroscopy
Sep. 2010 – Jun. 2013 Assistant Physicist Materials Science Division Argonne National Laboratory
Apr. 2008 – Jan. 2010 Postdoctoral Research Fellow University of Michigan, Ann Arbor Advisor: Prof. James W. Allen
Oct. 2006 – Mar. 2008 Visiting scientist University of Tokyo Advisor: Prof. Hidenori Takagi

CV

Professor Je-Geun Park, Ph.D., DIC, FInstP, KAST Member Department of Physics & Astronomy, Seoul National University
Seoul 151-747
KOREA
Tel; 82-2-880-6613/6536
Fax; 82-2-884-3002
e-mail; jgpark10@snu.ac.kr
http://magnetism.snu.ac.kr

Profile

I am currently leading a research center focused on quantum materials supported by the Korean National Research Foundation and the Samsung Science and Technology Foundation. My group has made several worldfirst reports in the area of strongly correlated electron systems, in particular magnetism and neutron/x-ray scattering. The latest example is the discovery of van der Waals magnets: in 2016, my group, for the first time, succeeded in realising true two-dimensional magnetism using naturally occurring materials.

Career

2020 – Present Director, Center for Quantum Materials, Seoul National University, Korea
2010 – Present Professor
Department of Physics & Astronomy, Seoul National University, Seoul, KOREA
2001 - 2010 Professor & SKKU Fellow
Department of Physics, SungKyunKwan University, Suwon, KOREA
1996-2001 Assistant/Associate Professor
Department of Physics, Inha University, Inchon, KOREA
1994-1996 Post-doctoral Research Fellow
Physics Department, Birkbeck College, University of London, London, UK
1993-1994 Post-doctoral Research Assistant
Laboratoire de Magnetisme Louis Neel, Centre National de la Recherche Scientifique Grenoble, France

Education

1990-1993 PhD: Physics Department, Imperial College, London
Supervisor: Prof. Bryan Randell Coles, FRS
1988-1990 MSc: Department of Physics, Seoul National University, Seoul, Korea
Supervisor: Prof. Se-Jung Oh
1984-1988 BSc: Department of Physics, Seoul National University, Seoul, Korea

Prize and Honor

2023 The POSCO Science Prize, The POSCO TJ Park Foundation
2022 Selected as a leading scientist in Korea by the Korean Academy of Science and Technology
2020 Elected as Infosys Visiting Chair Professor at Indian Institute of Science (IISc), Bangalore, India
2017 Elected to Member of The Korean Academy of Science and Technology
2016 The Korea Science Award, awarded by the Korean Government
2009 SKKU Fellow (Distinguished Professorship) Sungkyunkwan University, Korea
2008 Elected to Fellow of the Institute of Physics, UK

Eun-Gook Moon

82-42-350-2545  egmoon@kaist.ac.kr
Department of Physics, Korea Advanced Institute of Science and Technology (KAIST)
291 Daehak-ro, Yuseong-gu, Daejeon, 34141, South Korea

Employment

• Associate Professor of Physics at KAIST, starting March, 2020
• Assistant Professor of Physics at KAIST, June, 2015 to Feburary, 2020
• Principal Investigator, Ultra-Quantum Basic Research Laboratory, July, 2020 to Feb. 2023
• Kadanoff Center Fellow, University of Chicago, August, 2014 to May, 2015
• Postdoctoral Researcher, University of California at Santa Barbara, August, 2011 to July, 2014

Degrees Received

• Ph. D. in Physics from Harvard University, May, 2011
• B. S. in Physics from Seoul National University, Feb, 2005

Fellowships, Awards, and Memberships

• Member, Young Korea Academy of Science and Technology (Y-KAST), 2021 ∼ Present.
• Academic Prize, Korea Advanced Institute of Science and Technology, 2020.
• Young Physicist Prize, Korean Physical Society, 2019.
• the TJ Park Science Fellowship, 2017 ∼ 2019.
• the Kadanoff Center Fellowship, University of Chicago, 2014 ∼ 2015.
• the Purcell Fellowship, Harvard University, 2006.
• the Samsung Scholarship, 2006 ∼ 2010.
• the Korea Foundation for Advanced Students Scholarship, 2005.
• Summa Cum Laude (B.S. in physics, SNU), 2005.

Moon-Ho Jo

Director, Center for Van der Waals Quantum Solids, Institute for Basic Science (IBS) and Mueunjae Chair Professor, Pohang University of Science and Technology (POSTECH), Korea

Moon-Ho Jo is Director of Center for Van der Waals Quantum Solids, Institute for Basic Science (IBS) and Mueunjae Chair Professor of Dept. of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH). Moon-Ho received his Ph.D. in Materials Science at University of Cambridge (2001), with a dissertation on electron-spin tunneling in half-metallic manganites. He joined the faculty of Department of Materials Science and Engineering at POSTECH in 2004 after a postdoctoral fellowship at Harvard University, where he studied mesoscopic electron transport. Earlier in his faculty career, he has done original works on epitaxial growth of alloy semiconductor nanowires towards nanowire photonics. His current research interests include epitaxial molding of atomically thin van der Waals lattices and investigation of strong correlations therein, as well as technical developments of such materials into quantum electronics circuitry platforms. In 2022, he set out the IBS Center for Van der Waals Quantum Solids. He was appointed as a Fellow of The Korea Academy of Science and Technology in 2016.

He is currently an Editorial Advisory Board member of Nano Letters.

Yong-Joo Doh, Ph. D.

Professor
Department of Physics and Photon Science
Gwangju Institute of Science and Technology
123 Cheomdan-gwagiro, Gwangju 61005, Korea
Phone: +82-62-715-5921
Fax: +82-62-715-2224
E-mail: yjdoh@gist.ac.k

EXPERIENCE

2016. 3. –
Present Professor, Gwangju Institute of Science and Technology (GIST), Korea
2015. 3. – 2016. 2.
Professor, Korea University (Sejong), Korea
2010. 3. – 2015. 2.
Associate professor, Korea University (Sejong), Korea
2009. 3. – 2010. 2.
Research professor, Brain-Korea 21 Project
Dept. of Physics, Pohang University of Science and Technology (POSTECH), Korea
2007. 12. – 2009. 2.
Research professor, National CRI Center for Semiconductor Nanorods (Prof. Gyu-Chul Yi)
Dept. of Materials Science and Technology, POSTECH, Korea
2005. 6. – 2007. 11.
Post-doctor with Prof. Hongkun Park,
Dept. of Physics/Chemistry and Chemical Biology, Harvard University, United States of America
2003. 3. – 2005. 5.
Post-doctor with Prof. Leo P. Kouwenhoven,
Kavli Institute of Nanoscience Delft, Delft University of Technology (TU Delft), the Netherlands
2000. 3. – 2003. 3.
Post-doctor with Prof. Kookrin Char, Dept. of Physics, Seoul National University, Korea
1994. 3. – 2000. 2.
Research assistant supervised by Prof. Hu-Jong Lee,
Dept. of Physics, POSTECH, Korea
Ph.D. thesis titled “Intrinsic Josephson effects in Bi2Sr2CaCu2O8+x (Bi-2212) single crystals.”

EDUCATION

- Ph.D. in Physics, Pohang University of Science and Technology (Pohang, Korea), 2000. 2.
- M.S. in Physics, Pohang University of Science and Technology (Pohang, Korea), 1994. 2.
- B.S. in Physics, Seoul National University (Seoul, Korea), 1992. 2.

SELECTED PUBLICATIONS (corresponding author*

1. H.-S. Kim, T.-H. Hwang, N.-H. Kim, Y. Hou, D. Yu, H.-S. Sim, and Y.-J. Doh* , “Adjustable Quantum Interference Oscillations in Sb-Doped Bi2Se3 Topological Insulator Nanoribbons”, ACS Nano 14, 14118 (2020)
2. M. Kim, J. Kim, Y. Hou, D. Yu, Y.-J. Doh, B. Kim, K. W. Kim, and J. Suh, “Nanomechanical characterization of quantum interference in a topological insulator nanowire”, Nature Communications 10, 4522 (2019)
3. J. Kim, B.-K. Kim, H.-S. Kim, A. Hwang, B. Kim and Y.-J. Doh* , “Macroscopic Quantum Tunneling in Superconducting Junctions of β-Ag2Se Topological Insulator Nanowire”, Nano Letters 17, 6997 (2017)
4. B.-K. Kim, H.-S. Kim, Y. Yang, X. Peng, D. Yu and Y.-J. Doh* , “Strong superconducting proximity effects in PbS semiconductor nanowires”, ACS Nano 11, 221 (2017)
5. J. Kim, A. Hwang, S.-H. Lee, S.-H. Jhi, S. Lee, Y. C. Park, S. Kim, H.-S. Kim, Y.-J. Doh* , J. Kim* , B. Kim* , “Quantum electronic transport of topological surface states in β-Ag2Se nanowire”, ACS Nano 10, 3936 (2016)
6. Y. Yang, X. Peng, H.-S. Kim, T. Kim, S. Jeon, H. K. Kang, W. Choi, J. Song, Y.-J. Doh* , D. Yu* , “Hot carrier trapping induced negative photoconductance in InAs nanowires toward novel nonvolatile memory” Nano Letters 15, 5875 (2015).
7. T. D. N. Ngo, J.-W. Chang, K. Lee, S. Han, J. S. Lee, Y. H. Kim, M.-H. Jung, Y.-J. Doh, M.-S. Choi, J. Song* , J. Kim* , “Polarity-tunable magnetic tunnel junctions based on ferromagnetism at oxide heterointerfaces”, Nature Communications 6, 8035 (2015).
8. J.-H. Choi, G.-H. Lee, S. Park, D. Jeong, J.-O. Lee, H.-S. Sim* , Y.-J. Doh* , H.-J. Lee* , “Complete gate control of supercurrent in graphene p-n junctions” Nature Communications 4, 2525 (2013).
9. D. H. Lee, J. Yi, J. M. Lee, S. J. Lee, Y.-J. Doh, H. Y. Jeong, Z. Lee, U. Paik, J. A. Rogers, and W. I. Park, “Engineering electronic properties of graphene by coupling with Si-rich, two-dimensional islands”, ACS Nano 7, 301-307 (2013)
10. G.-H. Lee, D. Jeong, J.-H. Choi, Y.-J. Doh* , H.-J. Lee* , “Electrically tunable macroscopic quantum tunneling in a graphene-based Josephson junction”, Physical Review Letters 107, 146605 (2011. 9. 30)
11. M. Jung, H. Noh, Y.-J. Doh, W. Song, Y. Chong, M.-S. Choi, Y. Yoo, K. Seo, B.-C. Woo, B. Kim, J. Kim, “Superconducting junction of a single-crystalline Au nanowire for an ideal Josephson device”, ACS Nano 5, 2271-2276 (2011. 2. 28)
12. D. Jeong, J.-H. Choi, G.-H. Lee, S. Jo, Y.-J. Doh* , H.-J. Lee* , “Observation of supercurrent in PbIn-graphene-PbIn Josephson junction”, Physical Review B 83, 094503 (2011)
13. Y.-J. Doh, G.-C. Yi, “Nonvolatile memory devices based on few-layer graphene films”, Nanotechnology 21 105204 (2010.03.12)
14. J. Yoo, Y. J. Hong, H. S. Jeong, Y.-J. Kim, C.-H. Lee, J. Cho, Y.-J. Doh, L. S. Dang, K. H. Park, G.-C. Yi, “Fabrication and optical characteristics of position-controlled ZnO nanotubes and ZnO/ZnMgO coaxial nanotube quantum structure arrays”, Advanced Functional Materials 19, 1601-1608 (2009.05.22)
15. Y. J. Hong, J. Yoo, Y.-J. Doh, S. H. Kang, K. Kong, M. Kim, D. R. Lee, K. H. Oh, G.-C. Yi, “Controlled epitaxial growth modes of ZnO nanostructures using different substrate crystal planes”, Journal of Materials Chemistry 19, 941-947 (2009.02.21). (*Cover Highlighted)
16. C.-H. Lee, J. Yoo, Y.-J. Doh, G.-C. Yi, “ZnO/MgZnO coaxial nanorod heterostructures for high-performance electronic nanodevices applications”, Applied Physics Letters 94, 043504 (2009.01.29).
17. Y.-J. Doh, K. N. Maher, L. Ouyang, C. Yu, J. Park, H. Park, “Electrically driven light emission from individual CdSe nanowires”, Nano Letters 8, 4552 (2008.12.10).
18. Y.-J. Doh, S. De Franceschi, E. P. A. M. Bakkers, L. P. Kouwenhoven, “Andreev reflection versus Coulomb blockade in hybrid semiconductor nanowire devices”, Nano Letters 8, 4098 (2008.12.10). (*Cover Highlighted)
19. Y.-J. Doh, J. A. van Dam, A. L. Roest, E. P. A. M. Bakkers, L. P. Kouwenhoven, S. De Franceschi, “Tunable supercurrent through semiconductor nanowires”, Science 309, 272 (2005). *388 times cited.
20. J. Kim, Y.-J. Doh, K. Char, H. Doh, H.-Y. Choi, “Proximity effect in Nb/Au/CoFe trilayers”, Physical Review B 71, 214519 (2005).
21. Y.-J. Doh, J. Kim, H.-S. Chang, S. Chang, H.-J. Lee, K.-T. Kim, W. Lee, J.-H. Choy, “Coherent mode splitting of microwave-induced fluxons in HgI2-intercalated Bi2Sr2CaCu2O8+x single crystals”, Physical Review B 63, 144523 (2001).
22. Y.-J. Doh, J. Kim, K.-T. Kim, H.-J. Lee, “Microwave-induced constant voltage steps in surface junctions in Bi-2212 single crystals”, Physical Review B (Rapid Communication) 61, R3834 (2000).
23. Y.-J. Doh, H.-J. Lee, H.-S. Chang, “Progressive evolution of tunneling characteristics of intrinsic Josephson junctions in Bi2Sr2CaCu2O8+x single crystals”, Physical Review B 61, 3620 (2000

Changyong Song

Department of Physics POSTECH Pohang 37673, Korea
https://sites.google.com/site/femtoxv4/
Phone: +82 54 279 2096
E-mail: cysong@postech.ac.kr

PROFESSIONAL EXPERIENCE

POSTECH (Korea)
- Professor, Physics Department 03/2022 – present
- Director, MPK Center for Ultrafast Quantum Phenomena 03/2022 – present
- Associate Director, POSTECH Photon Science Center 09/2020 – present
- Associate Professor, Physics Department 03/2015 – 02/2022
RIKEN SPring-8 Center (Japan)
- Team Leader, XFEL Imaging Development Team 03/2013 – 02/2015
- Unit Leader, SONG Initiative Research Unit 03/2008 – 02/2013
University of California, Los Angeles (USA) 12/2004 – 02/2008
- Postdoctoral Fellow
POSTECH (Korea) 04/2001 – 11/2004
- Postdoctoral Fellow
VISITING AFFILIATION
- Visiting Scientist, RIKEN (Japan) 03/2015 – present
- Visiting Professor, University of Hyogo (Japan) 08/2011 – 02/2015
- Adjunct Professor, Physics, POSTECH (Korea) 04/2010 – 02/2015

EDUCATION

Ph.D.
Iowa State University, Ames, Iowa, USA 08/1996 – 05/2001 Experimental Condensed Matter Physics Thesis advisor: Prof. Alan I. Goldman
B.S.
Jeonbuk National University, Jeonju, Korea 03/1991 – 02/1995 Major: Physics

HONORS, AWARDS

Mu-Un-Jae Endowed Chair Professor (06/2020 – 05/2022)

RESEARCH INTEREST

Femtosecond X-ray dynamic imaging: dynamic probe for irreversible process
Newly established, with the original effort, time-resolved single-pulse imaging with the XFEL to achieve the highest spatio-temporal resolution imaging of irreversible phenomena at few hundred femtosecond and several nanometer scale. Investigating strongly driven non-equilibrium phase transition phenomena that have been veiled mostly without direct observation.
Research outcomes in Nature Communications (2019) and Science Advances (2021).

Near atomic resolution 3D coherent diffraction imaging
- Established cryogenic coherent X-ray 3D diffraction imaging methodology to actively investigate individual cellular organelles. Nanoscale 3D structures of human chromosomes, in frozen hydrated condition, were obtained using this independently developed cryo-CDI system to reveal that the stochastic 3D compaction of the chromatins in nanoscales.
Research outcomes published in PNAS (2021).

- In parallel, research on single-particle 3D imaging using single XFEL pulses is ongoing. With the XFEL single particle imaging scheme, 3D ensemble imaging to faithfully unveil the types of heterogeneous structures in single particle specimens was successfully demonstrated, for the first time, with detailed quantitative 3D analysis. Single-particle 3D imaging of biological specimens is performed via international Single-Particle Initiative (SPI) consortium activities.
Research outcomes published in ACS Nano (2021), Physical Review Applied (2020).

Resonant x-ray scattering investigation of correlated electron materials
- Investigating fundamental issues on ultrafast structural phase transitions, nonthermal melting phenomena using time-resolved resonant X-ray scattering technique via femtosecond optical laser pumping and the XFEL probing scheme. Direct observation of the orbital dynamics triggering the ultrafast lattice disorder in a covalent bonding system has been obtained.

PUBLICATIONS

Selected List
• "Inducing thermodynamically blocked atomic ordering via strongly driven nonequilibrium kinetics", C. Jung, Y. Ihm, D.-H. Cho, H. Lee, D. Nam, S.-S. Kim, I.-T. Eom, J. Park, C. Kim, Y. Kim, J. Fan, N. Ji, J. R. Morris, S. Owada, K. Tono, J-H Shim, H. Jiang, M. Yabashi, T. Ishikawa, D.-Y. Noh, and C. Song*, Sci. Adv., 7:eabj8552 (2021).

• “High-throughput 3D ensemble characterization of individual core-shell nanoparticles with X-ray free electron laser single-pulse imaging”, Do Hyung Cho, Zhou Shen, Yungok Ihm, Dae Han Wi, Chulho Jung, Daewoong Nam, Sangsoo Kim, Sang-Youn Park, Kyung Sook Kim, Daeho Sung, Heemin Lee, Jae-Yong Shin, Junha Hwang, Sung Yun Lee, Su Yong Lee, Sang Woo Han, Do Young Noh, N. Duane Loh* and Changyong Song*, ACS Nano, DOI/10:1021 (2021).

• “Direct observation of picosecond melting and disintegration of metallic nanoparticles", Y. Ihm, D. Cho, D. Sung, D. Nam, T. Sato, C. Jung, S-S. Kim, J. Park, S-N. Kim, M. Gallagher-Jones, Y. Kim, R. Xu, S. Owada, J. H. Shim, K.Tono, M. Yabashi, T. Ishikawa, J. Miao, D.-Y. Noh, and Changyong Song*, Nat. Commun., 10:2411 (2019).

• “Macromolecular structures probed by combining single-shot free-electron laser diffraction with synchrotron coherent x-ray imaging”, M. Gallagher-Jones, Y. Bessho, S.-N. Kim, J. Park, S.-S. Kim, D. Nam, C. Kim, Y.-H. Kim, D.-Y. Noh, O. Miyashita, F. Tama, Y. Joti, T. Kameshima, T. Hatsui, K. Tono, Y. Kohmura, M. Yabashi, S. Hasnain, T. Ishikawa, and C. Song*, Nat. Commun., 5:3798 (2014).

Adrian P. Mancuso

Adrian’s research interests centre predominantly around the development of techniques and methods exploiting spatially coherent X-rays to observe the structure and dynamics of matter. This includes novel approaches to instrumentation design, experiment design and data analysis using both X-ray Free Electron Lasers (XFELs) and synchrotron sources.

Adrian joined Diamond Light Source Limited in November 2022 as Director of Physical Sciences, leading a division of more than 220 scientists, technicians, planners and administrators to deliver impactful science across all of the physical sciences at the UK’s national synchrotron.

Prior to joining Diamond, Adrian designed, constructed and lead the operation team for the SPB/SFX instrument of the European XFEL—EuXFEL’s flagship scientific instrument for coherent X-ray single particle imaging, megahertz microscopy and structural biology. He curated large-scale user collaborations to utilise early beam at EuXFEL. His team’s in house research and development at EuXFEL was tailored to support the SPB/SFX science program, extending beyond structural biology and into materials science, X-ray optics and even broader fields. He has further interests in modelling and simulation for XFEL experiments, allowing the more efficient and effective use of beamtime at such in-demand facilities.

Present position
Director of Physical Sciences, Diamond Light Source, UK Professor (Adj.), Department of Chemistry and Physics, La Trobe University, Australia

Professional employment and academic education

Since Dec 2018 Professor (Adjunct), Department of Chemistry & Physics,
School of Molecular Sciences, La Trobe University, Australia
2010-2022 Leading Scientist & Group Leader, Scientific Instrument SPB/SFX, EuXFEL.
2007-2010 Postdoctoral researcher, Photon Science, DESY, Hamburg, Germany
2006-2007 Postdoctoral researcher at University of California, Los Angeles (UCLA), USA
2001-2005 Ph.D. at the School of Physics, University of Melbourne, Australia

Publications

Citation Metrics (following Google Scholar, 10/2023): h-index 37; > 80 peer-reviewed contributions; > 4100 citations

Curriculum Vitae

Gil Young Cho
Associate Professor
Physics Department,
POSTECH Phone: +82-10-5302-6478
Pohang, South Korea gilyoungcho@postech.ac.kr

1. Research Interes

I am interested in fundamental aspects of theoretical condensed matter physics with a specific focus on topological states and strongly-correlated materials. I am generally interested in quantum field theory, in particular topological field theory. Another line of my research is much more practical such as designing new topological states in strong spin-orbit coupled materials and understanding emerging superconductivity in low-dimensional materials.

2. Education

1. Ph. D. in physics, University of California, Berkeley, 2009-2013 Dec
Thesis title: Quantum field theoretic descriptions of topological phases in two and three dimensions
Thesis adviser: Professor Joel E. Moore
2. B.A. in physics, Korea Advanced Institute of Science and Technology, Korea, 2005- 2009
Summa Cum Laude (GPA: 4.27 out of 4.3, highest GPA among graduating students of the year)

3. Employments and Positions

1. Associate Professor, POSTECH, South Korea (2022 – Current)
Assistant Professor, POSTECH, South Korea (2018 – 2022)
2. Visiting Fellow, Perimeter Institute for Theoretical Physics, Canada (2018 – Current)
Associate Member, Korea Institute for Advanced Studies, Korea (2018 – Current)
Senior Advisory Group Member, Asia Pacific Center for Theoretical Physics, Korea (2022 – Current)
3. Postdoctoral Researcher in Korea (Alternative Military Service)
Korea Institute for Advanced Studies, Korea (2017 – 2018)
Korea Advanced Institute of Science and Technology, Korea (2015 - 2017)
4. ICMT Postdoctoral Fellow, University of Illinois at Urbana-Champaign, USA (2013 – 2015)

4. Selected Publications & Summary of Research Achievements

A. Selected Publications
(1) Topological BF field theory description of topological insulators, Gil Young Cho, and J. E. Moore, Ann. Phys., 326, 1515 (2011)
(2) Geometry of fractional quantum Hall fluids, Gil Young Cho, Y. You, and E. H. Fradkin, Phys. Rev. B, 90, 115139 (2014) [Invited Talk to APS March Meeting 2015]
(3) Topological pair-density-wave states, Gil Young Cho, R. Soto-Garrido, and E. H. Fradkin, Phys. Rev. Lett., 113, 256405 (2015)
(4) Theory of nematic fractional quantum Hall phases, Y. You, Gil Young Cho, and E. H. Fradkin, Phys. Rev. X, 4, 041050 (2014)
(5) Framing anomaly in effective theory of fractional quantum Hall effect, A. Gromov, Gil Young Cho, Y. You, A. G. Abanov, and E. Fradkin, Phys. Rev. Lett., 114, 016805 (2015)
(6) Higher-Order Topological Insulator in Twisted Bilayer Graphene, M. J. Park, Y. Kim, Gil Young Cho, and S.-B. Lee, Phys. Rev. Lett., 123, 216803 (2019)
(7) Stable Flatbands, topology, and superconductivity of magic honeycomb networks, J.M Lee, C. Geng, JW. Park, M. Oshikawa, S.S Lee, H.W. Yeom, and Gil Young Cho, Phys. Rev. Lett., 123, 137002 (2020)
(8) Many-Body Invariants for Chern and Chiral Hinge Insulators, B. Kang, W. Lee, and Gil Young Cho, Phys. Rev. Lett., 126, 016402 (2021)
(9) Non-Fermi Liquids in Conducting 2D Networks, J. M. Lee, M. Oshikawa, and Gil Young Cho, Phys. Rev. Lett., 126, 186601 (2021)
(10) Steady Floquet-Andreev States Probed by Tunnelling Spectroscopy, S. Park, Wonjun Lee, S. Jang, Y.-B. Choi, J. Park, W. Jung, K. Watanabe, T. Taniguchi, Gil Young Cho, and G.-H. Lee, Nature 603, 7901 (2022)
(11) Robust Interlayer-Coherent Quantum Hall States in Twisted Bilayer Graphene, D. Kim, B. Kang, YB Choi, K. Watanabe, T. Taniguchi, GH Lee, Gil Young Cho, and Y. Kim, Nano Letters 23, 163 (2023)

B. Summary of Research Achievements (last updated 2022 Feb)
- Total ~50 Publications
- H-index: 28, Total citation> 2100
- 4 Publications cited more than 100 times
- Publications after professorship at POSTECH includes 4 Phys. Rev. Lett., 2 Nature, 2 Nat. Comm. and 2 Nano Lett.

5. Honors, Fellowships, and Awards

1. This month’s Science, Technology and Researcher Award (“이달의 과학기술인 상”) Ministry of Science and ICT/National Research Foundation, South Korea (2022)
2. Emerging physicist prize (“신진 물리학자 상”), Korean Physics Society (2021)
3. Best Lecturer Award(“우수 강의상”), Quantum Mechanics I/II, POSTECH (2020)
4. Invited Speaker of 2015 APS March Meeting in Invited Session ``Geometry of Fractional Quantum Hall Phases” (2015)
5. ICMT Postdoctoral Fellowship, University of Illinois at Urbana-Champaign (2013 - 2015)
6. Caltech Lee prize fellowship, Caltech (2013, declined)
Cornell university Bethe fellowship, Cornell University (2013, declined) Gordon and Betty Moore fellowship, University of Illinois at Urbana-Champaign (2014, declined) JQI fellowship, Joint Quantum Institute at University of Maryland at College Park, (2013, declined) Perimeter Institute postdoctoral fellowship, Perimeter Institute (2013, declined)
7. Jackson C. Koo Award for Advanced Condensed Matter Graduate Students, UC Berkeley (2013)
8. KITP Graduate Fellowship, Kavli Institute of Theoretical Physics (KITP), UC Santa Barbara (2011)
9. Carl and Betty Helmholz/Allan and Kathleen Rosevear Fellowship, UC Berkeley (2011- 2012)
10. Berkeley Distinguished Graduate Fellowship, UC Berkeley (2009- 2010)
11. Presidential Prize (“대통령상”) by the President of Korea, Mr. MB Lee (2009),
12. Valedictorian, Commencement ceremony, KAIST (2009),
13. Representative of Young Korean Science Students at SIYSS/Nobel Prize Ceremony (2008)
14. 2nd Place Prize for Undergraduate Research Program, KAIST (2008),
15. Kwanjung Undergraduate Fellowship, KAIST (2006 - 2008)
16. KFAS Undergraduate Fellowship, KAIST (2006 - 2008)
17. Departmental Scholarship for Excellence in Physics, Physics Department, KAIST (2006 - 2008)

6. Journal Reviewers

1. Journal Reviewer, Phys. Rev. B (2014-), Phys. Rev. Lett (2015 -), Phys. Rev. X (2015 -)
2. Journal Reviewer, Nature Communication (2017-), Nature Physics (2017-)
3. Journal Reviewer, Physics Reports (2016 -) New Journal of Physics (2012 -); Nuclear Physics B (2012 -) Journal of Physics: condensed matter (2012 -) Journal of Physics A: mathematical and theoretical (2013 -) JSTAT (2014- )

RESEARCH FIELDS

Condensed matter theory: Non-equilibrium phase transitions, Floquet topological phase transition, dielectric breakdown in Mott insulators, Hi-Tc superconductors, and application of AdS/CFT.

PERSONAL DETAILS

ADDRESS : Kashiwanoha 5-1-5, Kashiwa, Chiba 277-8581 Japan
EMAIL : oka@issp.u-tokyo.ac.jp

EMPLOYMENT

DATES: January 1, 2020 -
Institute: Institute of Solid State Physics, The university of Tokyo
JOB TITLE: Professor

DATES: August 1, 2015 – September 30, 2020
Institute: Max Planck institute for the physics of complex systems, Max Planck
institute for chemical physics of solids
JOB TITLE: Group leader

DATES: June 1, 2012 - July 31, 2015
Institute: Department of Applied Physics, University of Tokyo
JOB TITLE: Lecturer

DATES: February 1, 2006 - May 31, 2012
Institute: Department of Physics, University of Tokyo
JOB TITLE: Assistant Professor

DATES: April 1, 2005 - February 1, 2006
Institute: National Institute of Advanced Industrial Science and Technology
JOB TITLE: Postdoctoral researcher

EDUCATION

March 31, 2000, B. S. (Science), Department of Physics, The University of Tokyo
March 31, 2005, Ph.D (Science), Department of Physics, The University of Tokyo

Present position

Assistant Professor, Department of Physics, Graduate School of Science, The University of Tokyo, E-mail: kazuaki.takasan@phys.s.u-tokyo.ac.jp
Office address: Room 941, Science Building 1, The University of Tokyo, Tokyo, 113-0033, Japan

Research interests

Theory of condensed matter physics
Nonequilibrium phenomena and dynamical control of solid-state systems and AMO systems
Floquet (periodically-driven) systems, Strongly correlated systems, Topological phases, Non-Hermitian systems

Education

B. Sc. Apr. 2010 - Mar. 2014
Kyoto University
M. Sc. Apr. 2014 - Mar. 2016
Kyoto University (Advisor: Prof. Norio Kawakami)
Thesis: Photo-induced phase transitions in topological Kondo insulators
Ph. D Apr. 2016 - Mar. 2019
Kyoto University (Advisor: Prof. Norio Kawakami)
Thesis: “Nonequilibrium phenomena and dynamical controls in strongly
correlated quantum systems driven by AC and DC electric fields

Employment

Apr. 2016 - Mar. 2019
Research fellow of Japan Society for the Promotion of Science (DC1)
Apr. 2019 Postdoctoral researcher at Kyoto University
May. 2019 – April. 2021
Postdoctoral researcher at University of California, Berkeley (Overseas Research Fellow of Japan Society for the Promotion of Science)
May. 2021 – March. 2022
Postdoctoral researcher at University of California, Berkeley and Lawrence Berkeley National Laboratory
April. 2022 –
present Assistant Professor at Tsuji group, Department of Physics, Graduate School of Science, The University of Tokyo

Awards

1. Poster Award at the Second Annual Meeting of “Topological Material Science” (TMS 2016), Dec. 17, 2016
2. Poster Preview Award at the Second Annual Meeting of “Topological Material Science” (TMS 2016), Dec. 17, 2016
3. Poster Preview Award at the First Annual Meeting of “Topological Material Science” (TMS 2015), Dec. 12, 2015

Organized workshop

Apr. 27, 2020 - present
Online CMT seminars (Online seminar series about condensed matter physics), Website: https://shinaoka.github.io/online_CMT_seminars