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

Abstract
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 anisotropic Dicke model. The phase diagram is given with OTOC. The finite-size effect is studied. Finally, the temperature effect is discussed.
Funding Information
  • National Natural Science Foundation of China (Grant No.11275180)

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