Abstract We present the linear entropy dynamics of the field state in the dispersive cavity in the Jaynes－Cummings model with an intensity-dependent coupling in the dispersive approximation, and investigate the influence of dissipation on entanglement between the field and the atoms. We show that the coherence properties of the field are also affected by the cavity when the nonlinear process of the field interacting with the atoms with an intensity-dependent coupling is involved, and find that the dissipation constant, the intensity of the field and the atomic distribution angle have different influence on the coherence properties of the field.
Received: 10 February 2003
Revised: 18 March 2003
Accepted manuscript online:
(Coherent control of atomic interactions with photons)
Fund: Project supported by the National Natural Science Foundation of China (Grant No 19874020), by the Natural Science Foundation of Hunan Province, China (Grant No 01JJY3030) and by the Ministry of Education, China.
Cite this article:
Li Chun-Xian (李春先), Fang Mao-Fa (方卯发) Linear entropy dynamics of the field in the Jaynes－Cummings model with an intensity-dependent coupling in the dispersive approximation 2003 Chinese Physics 12 866
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