Photonics, Internet Report

THE INFLUENCE OF THE STARK SHIFT ON THE ENTANGLEMENT SUDDEN DEATH FOR TWO ATOMS INTERACTING WITH COHERENT RESONANT FIELD

Eugene Bashkirov, Margarita Rusakova, Ekaterina Mangulova, Elena Sochkova,
Samara State University, Russia

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ABSTRACT

The dynamics of atom-field entanglement for two two-level atoms with degenerate
two-photon transitions interacting with one-mode radiation field with taking into account the Stark shift is investigated
Asymptotic solutions for system state vectors are obtained in the approximation of large initial coherent fields.
The atom-field entanglement is investigated also on the basis of the linear
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.

Representing author

photo

Dr. Eugene Konstantinovich Bashkirov

Samara State University, ~
Samara, Russia

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