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Entanglement evolution between atoms in the non-degenerate two photons Tavis-Cummings model in resonance and non-resonance cases

Zhang Guo-Feng Bu Jing-Jing

Entanglement evolution between atoms in the non-degenerate two photons Tavis-Cummings model in resonance and non-resonance cases

Zhang Guo-Feng, Bu Jing-Jing
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  • Received Date:  13 June 2009
  • Accepted Date:  18 June 2009
  • Published Online:  15 March 2010

Entanglement evolution between atoms in the non-degenerate two photons Tavis-Cummings model in resonance and non-resonance cases

  • 1. 北京航空航天大学物理科学与核能工程学院物理系,北京 100191

Abstract: The entanglement character between a two-level atom and a two-mode field as well as two-level atoms in the non-degenerate two photons Tavis-Cummings model in the resonance and non-resonance cases have been investigated, and the analytical expression about entanglement is obtained. Based on two kinds of initial states, the effects of field frequency, atomic frequency and dipole-dipole coupling between atoms on the entanglement are shown in detail. The cases of resonance and non-resonance are compared.

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