J4 ›› 2013, Vol. 30 ›› Issue (6): 716-721.

• Quantum Optics • Previous Articles     Next Articles

Entanglement evolution and transfer in classical driven Jaynes-Cummings model

Feng Lingjuan,Zhang Yingjie,Xia Yunjie   

  1. 1 Department of Physics,Qufu Normal University,Qufu,Shandong 273165,China; 2 Shandong Provinical Key Laboratory of Laser Polarization and Information Technology ,Department of Physics Qufu Normal University,Qufu,Shandong 273165,China
  • Published:2013-11-28 Online:2013-11-13

Abstract: The entanglement dynamical behaviors of two two-level atoms,which respectively interact with two single-mode cavity field are inestigated. The Jaynes-Cummings model in which the classical driven strength exists is studied,by means of numerical calculation,we analyze the effect of the initial entanglement and the classical field driven strength on the entanglement evolution and transfer of two atoms. The result shows that when we choose the appropriate condition,the phenomenon of entanglement sudden death can be inhibited,and realizes the biggest entanglement transfer between the atoms and cavity fields.

Key words: quantum optics, quantum entanglement, negative eigenvalues of the partial transposed matrix, classical field driven

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