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The entanglement properties in the system composed of a -type atom and a V-type atom trapped in two distant cavities connected by an optical fiber

Lu Dao-Ming

The entanglement properties in the system composed of a -type atom and a V-type atom trapped in two distant cavities connected by an optical fiber

Lu Dao-Ming
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  • Received Date:  18 March 2011
  • Accepted Date:  25 May 2011
  • Published Online:  15 December 2011

The entanglement properties in the system composed of a -type atom and a V-type atom trapped in two distant cavities connected by an optical fiber

  • 1. Department of Electronic Engineering, Wuyi University, Wuyishan 354300, China

Abstract: 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.

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