journal6 ›› 2011, Vol. 32 ›› Issue (4): 50-54.

• Physics and electronics • Previous Articles     Next Articles

Two-Photon Tavies-Cummings Model of Quantum Entanglement in Cavity Field in the Dissipative Condition


  1. (College of Physics Science and Information Engineering,Jishou University,Jishou 416000,China)
  • Online:2011-07-25 Published:2012-04-07

Abstract: This paper investigates quantum entanglement of two atoms in the non-dissipative and dissipative cases by means of concurrence.The results indicate that maximum entanglement condition can be prepared by controlling the interacting time and due to the two-photon transition of atoms,the time required to prepare the maximum entanglement in two-photon Tavies-Cummings model is  of that in single-photon Tavies-Cummings model.In addition,the atomic spontaneous emission and cavity decay make the maximum coherence of two atoms decrease periodically.

Key words: two-photon Tavies-Cummings model, atomic coherence, concurrence, spontaneous emission coefficient, cavity decay

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