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30 January 2014 Dynamics of two-atom two-photon Tavis-Cummings model with intensity-dependent coupling
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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.
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Eugene K. Bashkirov and Svetlana V. Volkova "Dynamics of two-atom two-photon Tavis-Cummings model with intensity-dependent coupling", Proc. SPIE 9031, Saratov Fall Meeting 2013: Optical Technologies in Biophysics and Medicine XV; and Laser Physics and Photonics XV, 903112 (30 January 2014);

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