Atom-field entanglement for Jaynes–Cummings model with an intensity-depend coupling

Abstract

We investigate the evolution of a quantum system described by the two-atom Jaynes–Cummings model with an intensity-dependent couplings by displaying the linear atomic entropy and the asymptotic behavior of state vector. The possibility of the system being initially in a pure disentangled state to revive into this state during the evolution process is shown. Conditions and times of disentanglement are derived.

Keywords

• two-atom jaynes–cummings model
• intensity-dependent coupling
• atomfield entanglement