Entanglement in two-atom Tavis-Cummings model with Raman transitions

Eugene K. Bashkirov

doi:10.1117/12.2267922

14 April 2017 Entanglement in two-atom Tavis-Cummings model with Raman transitions

Eugene K. Bashkirov

Proceedings Volume 10337, Saratov Fall Meeting 2016: Laser Physics and Photonics XVII; and Computational Biophysics and Analysis of Biomedical Data III; 103370A (2017) https://doi.org/10.1117/12.2267922
Event: Saratov Fall Meeting 2016: Fourth International Symposium on Optics and Biophotonics, 2016, Saratov, Russian Federation

Abstract

An exact solution of the problem of two two-level atoms with degenerate Raman two-photon transitions interacting with one-mode coherent or thermal radiation field in cavity is presented. Asymptotic solution for system state vector is obtained in the approximation of large initial coherent fields. The atom-field 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. The atom-atom entanglement is investigated with using negativity. The possibility of sudden death and birth of atom-atom entanglement is predicted for a coherent field with large mean photon numbers.

Citation Download Citation

Eugene K. Bashkirov "Entanglement in two-atom Tavis-Cummings model with Raman transitions", Proc. SPIE 10337, Saratov Fall Meeting 2016: Laser Physics and Photonics XVII; and Computational Biophysics and Analysis of Biomedical Data III, 103370A (14 April 2017); https://doi.org/10.1117/12.2267922

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