Influence of the Kerr Medium on the Fidelity of Quantum State

  • Tang-Kun Liu
  • Ji-Suo Wang
  • Ming-Sheng Zhan
Conference paper


In this paper, the fidelity in two-photon J-C model of a high Q cavity filled with the Kerr medium is investigated. It is found that the Kerr medium significantly influences the fidelity of quantum states. When the coupling between the medium and the cavity is strong, the fidelity of atom keeps to be 1, the atom is disentangled, which results from the shielding of interaction of the field and the atom by the Kerr medium.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • Tang-Kun Liu
    • 1
  • Ji-Suo Wang
    • 1
  • Ming-Sheng Zhan
    • 1
  1. 1.Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and MathematicsThe Chinese Academy of SciencesWuhanP.R.China

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