Out-of-time-ordered correlation in the anisotropic Dicke model  

作　　者：Jihan Hu Shaolong Wan 胡继晗;完绍龙(Department of Modern Physics,University of Science and Technology of China,Hefei,230026,China)

机构地区：[1]Department of Modem Physics,University of Science and Technology of China,Hefei,230026,China

出　　处：《Communications in Theoretical Physics》2021年第12期176-179,共4页理论物理通讯（英文版）

基　　金：supported by NSFC Grant No.11275180。

摘　　要：Out-of-time-ordered correlation(OTOC)functions have been used as an indicator of quantum chaos in a lot of physical systems.In this work,we numerically demonstrate that zero temperature OTOC can detect quantum phase transition in the anisotropic Dicke model.The phase diagram is given with OTOC.The finite-size effect is studied.Finally,the temperature effect is discussed.

关 键 词：OTOC anisotropic dicke model quantum phase transition 

分 类 号：O413[理学—理论物理]