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

Mao-Fa Fang, and Peng Zhou,

Physica A: Statistical Mechanics and its Applications, 1996, vol. 234, issue 1, 571-580

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.

Keywords: Quantum entropy; Entanglement; Rotating-wave approximation; Virtual-photon processes (search for similar items in EconPapers)
Date: 1996
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:234:y:1996:i:1:p:571-580

DOI: 10.1016/S0378-4371(96)00295-6

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