理论物理通讯：英文版

Coherence Loss of Two-Photon Jaynes-Cummings Model in Dispersive Approximation

ZHOULing, GUOYan-Qing, SONGHe-Shan, LIChong

Published Jan 1, 2004• 0 citations

Abstract

Completely solving the dissipative dynamics of nonlinear Jaynes-Cumming model is a very difficult task.In our recent work (Phys. Lett. A284 (2001) 156), we just obtained analytical results of the field dissipative dynamicsof the nonlinear JCM. In the present paper, employing the perturbative expansion of master equation, we obtain thedensity operator of the system (field +atom). The coherence losses of the system and of the atom are investigated whentwo-photon process is involved. We also study the effect of different atomic initial states and the influence of the fieldamplitude on the atomic coherence loss.

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