Entanglement of Rydberg atoms successively passing a thermal cavity

Abstract

We investigated the entanglement between two identical two-level Rydberg atoms successively passing cavity and interacting with one-mode field through a one-photon and degenerate two-photon processes. For two-photon interaction, we focused our attention on the study of atomic entanglement dynamics in the presence of the Stark shift and initial atomic coherence. For one-photon case we discussed the influence of atomic coherence, detuning and cavity thermal photons on the entanglement dynamics for entangled initial atomic states.