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Vestnik SamGU. Estestvenno-Nauchnaya Ser., 2014, Issue 7(118), Pages 115–124
(Mi vsgu433)
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Physics
Entanglement of atoms succesively passing a cavity taking into account the Stark shift
E. K. Bashkirov Samara State University, Samara, 443011, Russian Federation
(published under the terms of the Creative Commons Attribution 4.0 International License)
Abstract:
In the article we consider the influence of dynamical Stark shift on entanglement degree of two atoms with degenerate two-photon transitions successively passing an ideal one-mode cavity. We suppose that the field be prepared in vacuum state and the atoms be prepared in coherent superposition of excited and ground states. Thus it was also supposed that atoms fly by the cavity for identical time. On the basis of exact expression of evolution operator we carried out atom-atom entanglement for different values of two-atom coherence parameters and different values of cavity flight time. It is shown that Stark shift of energy levels can be used for effective control on a degree of atomic entanglement.
Keywords:
two-level atom, qubit, atomic entanglement, vacuum field, degenerate two-photon transitions, Stark shift, atomic coherence, entanglement control.
Received: 03.07.2014 Accepted: 03.07.2014
Citation:
E. K. Bashkirov, “Entanglement of atoms succesively passing a cavity taking into account the Stark shift”, Vestnik Samarskogo Gosudarstvennogo Universiteta. Estestvenno-Nauchnaya Seriya, 2014, no. 7(118), 115–124
Linking options:
https://www.mathnet.ru/eng/vsgu433 https://www.mathnet.ru/eng/vsgu/y2014/i7/p115
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Abstract page: | 119 | Full-text PDF : | 81 | References: | 29 |
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