Recorded video link: https://vshare.sjtu.edu.cn/open/b54fef09516bd095d8556a4e75b1930416794f49a772836e11668da75ae33aa5

Host: Prof. Hong Ding (丁洪）

Abstract：

Atomic internal states are ideal candidates for encoding qubits, or identical qubits, that are easily manipulated, and support unparalleled quantum coherence. Recent breakthroughs in key implementation technologies have resulted in successful experiments with coherent tunable strong Rydberg-atom interactions between nearby atomic qubits. The reconfigurable, defect-free, and single atom tweezer array, aided by the expanded connectivity due to coherent translation of qubits, has emerged as a dark horse for realizing quantum simulation and quantum computation [1]. This talk will introduce the associate systems and physical mechanisms, highlight their promising potential for scaling up to larger number of qubits. Recent results and experimental progresses from our own group will also be discussed [2,3,4].

References:
[1] Xiaoling Wu, Xinhui Liang, Yaoqi Tian, Fan Yang, Cheng Chen, Yong-Chun Liu, Meng Khoon Tey, and Li You, "A concise review of Rydberg atom based quantum computation and quantum simulation”, Chinese Phys. B, Vol. 30, No. 2, 020305 (2021).   
[2] Xiaoling Wu, Zhuqing Wang, Fan Yang, Ruochen Gao, Chao Liang, Meng Khoon Tey, Xiangliang Li, Thomas Pohl, and Li You, "Observation of a dissipative time crystal in a strongly interacting Rydberg gas", Nature Physics 20, 1389 (2024). 
[3] Xinhui Liang, Zongpei Yue, Yu-Xin Chao, Zhen-Xing Hua, Yige Lin, Meng Khoon Tey, and Li You, "Observation of anomalous information scrambling in a Rydberg atom array", arXiv:2410.16174. 
[4] Zongpei Yue, Yufeng Mao, Xinhui Liang, Zhenxing Hua, Peiyun Ge, Yuxin Chao, Kai Li, Chen Jia,  
Meng Khoon Tey, Yong Xu, and Li You, "Observation of structural disorder-induced topological phase in an atom array",  arXiv:2505.06286v1.
 

Bio:

Li You, APS Fellow (2007), CUSPEA student of the 1987 class, obtained his BS from Nanjing University in 1987, and Ph.D. from JILA, University of Colorado in 1993. From 1993-1996, he was an NSF postdoctoral fellow at the Institute for Theoretical Atomic and Molecular Physics (ITAMP) of Harvard-Smithsonian Center for Astrophysics. He joined Georgia Tech in 1996, won ONR YIP Award (1997) and NSF Career Award (1997), promoted to Professor in 2004. He moved to Tsinghua University in 2009, and shared the First award in the “2013 Awards for Essays on Gravitation” by the GRAVITY RESEARCH FOUNDATION, with the essay "Information Conservation Is Fundamental: Recovering the Lost Information in Hawking Radiation". His research interests include atomic physics, quantum optics, and quantum information science.