Entanglement between two atoms in the presence of dipole-dipole interaction and atomic coherence
Eugene K. Bashkirov, Darya V. Litvinova · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2015
We have investigated the influence of dipole-dipole interaction and initial atomic coherence on dynamics of two-atom systems. We have considered a model, in which only one atom is trapped in a cavity, and the other one can be spatially moved freely outside the cavity. We have shown the possibility of disappearance of the entanglement sudden death effect in the presence of the dipole interaction of atoms. We have also derived that the initial atomic coherence can be used for effective control of the degree of the atom-atom entanglement.