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Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

Dynamics of two-atom two-photon Tavis-Cummings model with intensity-dependent coupling

Eugene K. Bashkirov, Svetlana V. Volkova

Published Jan 29, 2014• 1 citation
Publisher

Abstract

An exact solution of the problem of two two-level atoms with nondegenerate two-photon transitions and intensitydependent coupling interacting with two-mode radiation field is presented. Asymptotic solution for system state vector is 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 is shown. Conditions and times of disentanglement are derived.

DOI
10.1117/12.2051466

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An exact solution of the problem of two two level atoms with degenerate two photon transitions interacting with one mode coherent radiation field 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 model considered is shown. Conditions and times of disentanglement are derived.