量子混沌与TTbar形变SYK

2022.12.08

投稿:龚惠英部门:浏览次数:

活动信息

报告题目 (Title):Quantum chaos and TTbar deformed SYK(量子混沌与TTbar形变SYK)

报告人 (Speaker):何松 教授(吉林大学)

报告时间 (Time):2022年12月12日(周一) 14:00-16:00

报告地点 (Place):腾讯会议(ID:986-423-637)

https://meeting.tencent.com/dm/qkO03smD2cg9

邀请人 (Inviter):蔡文赫

摘要 (Abstract):

In this work, we investigate the quantum chaos in various TTbar-deformed SYK models with finite N, including the SYK4, the supersymmetric SYK4, and the SYK2 models. We numerically study the evolution of the spectral form factor (SFF), the out-of-time ordered correlator (OTOC), and the Krylov complexity. We find that the characteristic evolution of the SFF, OTOC and K-complexity of both the SYK4 and SSYK4 models remains unchanged under the deformation, which implies that the properties of quantum chaos is preserved. We also identify a many-body localization behavior in the deformed SYK2 model.