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The entanglement properties in the system of a two three-level atoms trapped in coupled cavities

Lu Dao-Ming

The entanglement properties in the system of a two three-level atoms trapped in coupled cavities

Lu Dao-Ming
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  • Received Date:  19 April 2011
  • Accepted Date:  27 May 2011
  • Published Online:  15 March 2012

The entanglement properties in the system of a two three-level atoms trapped in coupled cavities

  • 1. Department of Electronic Engineering, Wuyi University, Wuyishan 354300, China
Fund Project:  Project supported by the Natural Science Foundation of Fujian Province, China (Grant No. 2008J0217).

Abstract: We study the entanglement dynamics of the system composed of a Λ-type atom and a V-type atom resonantly interacting with two coupled cavities. The evolution of the state vector of the system is given. We investigate the evolutions of atom-atom entanglement, cavity-cavity entanglement, and atom-cavity entanglement by Negativity. The influences of cavity-cavity coupling coefficient on the entanglements are discussed. The results obtained by the numerical method show that the atom-atom entanglement is strengthened and the cavity-cavity entanglement is weakened with the increase of the cavity-cavity coupling coefficient.

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