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Stanford EE

Applied Physics 483 Optics & Electronics Seminar: Universal Statistics of Quantum Systems and their Applications

Summary
Prof. Joonhee Choi (Stanford)
Spilker 232
May
15
Date(s)
Content

Abstract: We discover that universal statistics emerge from ergodic Hamiltonian dynamics of generic quantum systems. The signatures of these statistics are revealed by the observation of the so-called Porter-Thomas distribution that emerges in a wide variety of quantum computers and simulators. The presence of such universal properties plays an important role in quantum information science, for example allowing the development of an efficient, widely applicable benchmarking protocol. Via the new benchmarking method, we demonstrate the fidelity estimation of a Rydberg quantum simulator with up to 60 atoms and discuss prospects for realizing practical quantum advantage with near-term quantum simulators.

Biography: Joonhee Choi started his new position as Assistant Professor of Electrical Engineering in January 2023. Choi is an experimentalist with a diverse background spanning from mechanical and quantum engineering to quantum information science. He received his Ph.D. and master’s from Harvard University, as well as master’s and bachelor’s degrees from Korea Advanced Institute of Science & Technology. Prior to joining Stanford, he worked as an IQIM postdoctoral fellow at the Institute for Quantum Information and Matter (IQIM) at Caltech.