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International Journal of Theoretical Physics

Control of the Entanglement Between Two Atoms Trapped in Spatially Separated Cavities Connected by an Optical Fiber

Qinghong Liao, Guangyu Fang, Jicheng Wang, Yueyuan Wang, Muhammad Ashfaq Ahmad, Shutian Liu

Published Mar 23, 2011• 2 citations
Publisher
DOI
10.1007/s10773-011-0758-2

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We consider a system consisting of a -type atom and a V-type atom, which are individually trapped in two spatially separated cavities that are connected by an optical fiber. The evolution of the state vector of the system is given. We investigate the temporal evolution in the entanglement between atoms and that between cavities. We discuss the influence of cavity-fiber coupling coefficient on entanglement. The results obtained by the numerical method show that the entanglement between atoms and the entanglement between cavities have the same evolution regularities. On the other hand, the entanglement between atoms and that between cavities are strengthened with the increase of cavity-fiber coupling coefficient.

Acta Physica Sinica•Jan 1, 2011•7 citations
We consider a system consisting of a -type atom and a V-type atom, which are individually trapped in two spatially separated cavities that are connected by an optical fiber. The evolution of the state vector of the system is given. We investigate the temporal evolution in the entanglement between atoms and that between cavities. We discuss the influence of cavity-fiber coupling coefficient on entanglement. The results obtained by the numerical method show that the entanglement between atoms and the entanglement between cavities have the same evolution regularities. On the other hand, the entanglement between atoms and that between cavities are strengthened with the increase of cavity-fiber coupling coefficient.