Geodesic
Entanglement of atoms succesively passing a cavity taking into account the~Stark shift
Vestnik Samarskogo universiteta. Estestvennonaučnaâ seriâ, no. 7 (2014), pp. 115-124

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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, vacuum field, degenerate two-photon transitions, Stark shift, atomic coherence
Mots-clés : atomic entanglement, entanglement control. 
@article{VSGU_2014_7_a10,
     author = {E. K. Bashkirov},
     title = {Entanglement of atoms succesively passing a cavity taking into account {the~Stark} shift},
     journal = {Vestnik Samarskogo universiteta. Estestvennonau\v{c}na\^a seri\^a},
     pages = {115--124},
     publisher = {mathdoc},
     number = {7},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VSGU_2014_7_a10/}
}
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E. K. Bashkirov. Entanglement of atoms succesively passing a cavity taking into account the~Stark shift. Vestnik Samarskogo universiteta. Estestvennonaučnaâ seriâ, no. 7 (2014), pp. 115-124. http://geodesic.mathdoc.fr/item/VSGU_2014_7_a10/