Prof. Xu Yi
Department of Electrical and Computer Engineering,
University of Virginia

Abstract

Quantum technology holds many revolutionary promises, such as exponentially speeding up intractable computation tasks, secure quantum networking, and surpassing the standard quantum limit for sensing and spectroscopy. Scaling up the quantum system is one of the critical challenges in many of these promises. In this talk, I will introduce our recent efforts to address the scalability challenge through photonic integration and optical multiplexing. In our experiments, we generated quantum optical frequency combs in an ultra-high Q optical microresonator on a photonic chip. The optical microresonator can provide thousands of frequency multiplexed quantum modes, where unconditionally entanglement can be created through the Kerr parametric process. I will discuss our ongoing efforts of multipartite entanglement generation, heterogeneous integration of multiplexed quantum source and detection, and their future applications in quantum computing, quantum networking, and quantum sensing.

Dr. Xu Yi is an Associate Professor in the Department of Electrical and Computer Engineering, courtesy Associate Professor of Physics at the University of Virginia. He obtained his Ph.D. in Applied Physics from the California Institute of Technology in 2017. His research interest has been focused on integrated photonics, quantum optics, optical microresonators, optical frequency combs, and their applications in quantum computing, spectroscopy, astronomical calibration, etc. Dr. Yi is the recipient of the NASA group achievement award in 2017 and the Air Force Young Investigator Program award in 2021, NSF CAREER Award in 2022.