Atom-field entanglement in two-atom Jaynes-Cummings model with nondegenerate two-photon transitions |
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Authors: | E.K. Bashkirov M.S. Rusakova |
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Affiliation: | Department of General and Theoretical Physics, Samara State University, 1 Academican Pavlov Street, Samara 443011, Russia |
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Abstract: | An exact solution of the problem of two two-level atoms with nondegenerate two-photon transitions and nondegenerate Raman transitions interacting with two-mode 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 both models is shown. Conditions and times of disentanglement are derived. |
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Keywords: | 42.50.&minus p 03.65.&minus w 42.52.+x |
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