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研究了附加克尔(Kerr)介质双光子Jaynes-cummings(J-C)模型场熵的动力学特性,讨论了克尔介质非线性相互作用对场熵的影响。借助于光场Q函数的分支结构在相空间的量子干涉,对场熵特性的物理机制作出了解释。In this paper, the entropy properties of the field in the two-photon Jaynes-Cu-mmings model with an additional Kerr medium are studied, the effect of nonlineari-ty interaction of the Kerr medium with the model field on the field entropy are discussed. With the help of quantum interference in phase space between two part of the bifurcation of the Q function of the field, the physical mechanism of properties of the field entropy are explained.
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