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Quantum entropy and entanglement in the Jaynes-Cummings model without the rotating-wave approximation

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  • Mao-Fa Fang,
  • Peng Zhou,

Abstract

We have investigated the evolution of the field quantum entropy and the entanglement of the atom-field in the Jaynes-Cummings model without the rotating-wave approximation, and examined the effects of the virtual-photon processes (the counter-rotating terms) on the evolution of the field quantum entropy and the entanglement of the atom-field. Our results show that under the condition of the initial strong field, the virtual-photon processes play an important role for the evolution of the field quantum entropy and the entanglement between the atom and the field.

Suggested Citation

  • Mao-Fa Fang, & Peng Zhou,, 1996. "Quantum entropy and entanglement in the Jaynes-Cummings model without the rotating-wave approximation," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 234(1), pages 571-580.
    • Handle: RePEc:eee:phsmap:v:234:y:1996:i:1:p:571-580
    DOI: 10.1016/S0378-4371(96)00295-6
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