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
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.