The influence of atomic coherence on entanglement of atoms with two-photon transitions taking into account the dynamical Stark shift

In this paper we investigated the entanglement dynamics of two atoms interacting with mode of quantum electromagnetic field via degenerate two-photon transitions taking into account the Stark shift. We considered the initial coherent disentangled atomic states and field Fock states. We shown the possibility of the control of degree of atomic entanglement due to the Stark shift and the atomic coherence.