Saratov Fall Meeting: Laser Physics, Photonic Technologies, and Molecular Modeling
Dynamics of atom-field entanglement for Tavis-Cummings models
Eugene K. Bashkirov
Abstract
An exact solution of the problem of two-atom one- and two-mode Jaynes-Cummings model with intensity- dependent coupling is presented. Asymptotic solutions for system state vectors are obtained in the approximation of large initial coherent fields. The atom-field entanglement is investigated on the basis of the reduced atomic entropy dynamics. The possibility of the system being initially in a pure disentangled state to revive into this state during the evolution process for both models is shown. Conditions and times of disentanglement are derived.