Abstract:
Quantum computation and quantum simulation can be performed by superconducting quantum processors. In this talk, I will review series of progresses about multi-qubit quantum simulation. Focusing on superconducting quantum processors, the simulation of many-body localization will be presented, including demonstration of entropy increase logrithmically with time, energy resolution phase transition between thermalization and many-body localization. The dynamical quantum phase transitions simulated by multi-qubit quantum processor and single-qubit will be demonstrated, respectively. Strongly correlated quantum walks by a chain of 12 qubits will be presented. Finally, the generation of Schrodinger cat states of up to 20 qubits will be reported.

References:
[1] C. Song et al., Science 365, 574-577 (2019).
[2] Z. Yan et al., Science 364, 753-756 (2019).
[3] Y. Ye et al., Phys. Rev. Lett. 123, 050502 (2019).
[4] K. Xu et al., Science Advances 6, eaba4935 (2020).

About the speaker:
FAN Heng
Professor
Doctoral supervisor
Q03 group leader
Director of the Solid State Quantum Information and Computing Laboratory
Of Institute of Physics, Chinese Academy of Sciences
Joint professor of BAQIS
He received his bachelor's degree from Peking University in 1990 and his Ph.D. degree in physics from Northwest University in 1996. From 1999 to 2005, he engaged in post-doctoral research at the University of Tokyo, the Japan Science and Technology Agency, and the University of California, Los Angeles. In 2005, he joined the Institute of Physics, Chinese Academy of Sciences. His research focus is in quantum computing and quantum simulation theoretical and experimental research. He has published more than 260 research papers, including two papers on Science. His papers have been cited more than 5000 times by SCI.