Two atoms in dissipative cavities in dispersive limit: entanglement sudden death and long-lived entanglement

Details Two atoms in dissipative cavities in dispersive limit: entanglement sudden death and long-lived entanglement Two atoms in dissipative cavities in dispersive limit: entanglement sudden death and long-lived entanglement

2009-12-23

arxiv.org/abs/0912.4617v1

J. Phys. B: At. Mol. Opt. Phys. 43 (2010) 025501

Physics

Quantum Physics

18 pages, 7 figures

Scientific paper

We investigate the entanglement dynamics and coherence of two two-level atoms interacting with two coherent fields of two spatially separated and dissipative cavities. It is in particular shown that entanglement sudden death is obtained within a short interacting time. However, after a long interaction time a long-lived entanglement is shown, that is, the initial entanglement of two atoms could be partially preserved. In addition, the coherence of the two atoms will not be lost during the evolution.

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