Effect of system energy on quantum signatures of chaos in the two-photon Dicke model
Effect of system energy on quantum signatures of chaos in the two-photon Dicke model
We have studied entanglement entropy and Husimi $Q$ distribution as a tool to explore chaos in the quantum two-photon Dicke model. With the increase of the energy of a system, the linear entanglement entropy of a coherent state prepared in the classical chaotic and regular regions becomes more distinguishable, and …