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Volume 25 - ICOP & ICPET 2019
ICOP & ICPET _ INPC _ ICOFS 2019, 25 - ICOP & ICPET 2019: 181-184 |
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Mohammadi abdehvand S, Amooghorban E, Mahdifar A. Geometric phase of a two-level atom near a dissipative and dispersive nano-sphere . ICOP & ICPET _ INPC _ ICOFS 2019; 25 :181-184
URL: http://opsi.ir/article-1-1798-en.html
URL: http://opsi.ir/article-1-1798-en.html
Abstract: (1791 Views)
In this paper, we study the geometric phase of a two-level atom near a dissipative nano-sphere. For this purpose, by applying the Von-Neumann equation, we obtain the reduced density operator of the atomic system in the Markov and the rotating-wave approximations. Then, by specifying the eigenvalues and the eigenvectors of the reduced density operator, the Lamb shift and transition rates in terms of the Green tensor of system are obtained. Finally, by calculating the Green tensor of system and making use of the kinematic approach, the geometric phase is calculated. We observe that the geometric phase near the excitation frequency of the polariton-phonons in the sphere will be drastically changed.
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