Out-of-Time-Ordered Correlation in 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 computationally demonstrate that zerotemperature OTOC can detect quantum phase transition in anisotropic Dicke model. Phase diagram is given with OTOC. Finite-size effect is studied. Finally, temperature effect is discussed.

4 pages, 6 figures

References in corpus (4)

• Lyapunov Exponent and Out-of-Time-Ordered Correlator's Growth Rate in a Chaotic System
• Jarzynski-like equality for the out-of-time-ordered correlator
• Non-ergodicity in the Anisotropic Dicke model
• Exploring chaos in Dicke Model using ground state fidelity and Loschmidt echo