»ã±¨±êÌâ (Title)£ºQuantum chaos and TTbar deformed SYK£¨Á¿×Ó»ìãçÓëTTbarÐαäSYK£©

»ã±¨ÈË (Speaker)£ººÎËÉ ½ÌÊÚ£¨¼ªÁÖ´óѧ£©

»ã±¨¹¦·ò (Time)£º2022Äê12ÔÂ12ÈÕ(ÖÜÒ») 14:00-16:00

»ã±¨µØÖ· (Place)£ºÌÚѶ»áÒ飨ID£º986-423-637£©

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

Ô¼ÇëÈË (Inviter)£º²ÌÎĺÕ

ÌáÒª (Abstract)£º

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.