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has been cited by the following article:

• TITLE: Dynamics of Entanglement in the Cavity with Nonlinear Medium

  AUTHORS: Shaojiang Du, Hairan Feng

  KEYWORDS: Quantum Optics; Kerr Medium; Negativity; Entanglement Sudden Death

  JOURNAL NAME: Journal of Modern Physics, Vol.4 No.5, May 23, 2013

  ABSTRACT: We investigate the evolution of initial entangled two-atom in cavity with single-mode light field. Using the method of negative eigenvalue of partially transposed matrix we analysis the evolution of the entanglement of the two-atom in a field of number state and Kerr-media environment and find that entanglement sudden death phenomenon occurs in the number of particles field. When the atoms interact with the Kerr medium, we obtain that the phenomenon of sudden death can be eliminated in the particle-number field, and the entanglement of two-atom oscillates around a high-value.