附加Kerr介质非关联双模相干态场与V型三能级原子的相互作用系统中原子(场)的熵特性

ENTROPY PROPERTIES OF THE FIELD OR THE ATOM IN THE INTERACTING SYSTEM OF TWO-MODE FIELD WITH THE V-TYPE THREE-LEVEL ATOM IN A KERR-LIKE MEDIUM 

利用附加克尔介质非关联双模相干态场与V型三能级原子相互作用系统的态矢量导出了原子 (场 )熵的计算公式 ,通过数值计算 ,绘出并讨论了克尔介质对场熵特性的影响 ,结果表明强的克尔效应可以使原子呈现布居俘获 ,且使熵的时间演化周期性变化 ,弱的克尔效应使原子和光场的关联改善 ,减小关联起伏 .

Using the method of the systematic state vector we formulate the entropy of the V-type three-level atom interacting with initially uncorrelated two\|mode coherent states of arbitrary detunings in a cavity filled with Kerr\|like medium. It is shown by numerical calculation that the behavior of the entropy is strongly affected by the Kerr medium. Weak Kerr medium improves the quantum correlation. Stronger Kerr medium induces strongly periodic fluctuation of the quantum correlation between the atom and the fields.