The 1st International Conference on Prospective Quantum Technology: Science and Applications

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.

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.

PROGRAM

Plenary Lectures