依赖强度耦合Tavis－Cummings模型中的场熵演化和光子统计特性

Evolution of the Field Entropy and Photon Statistical Properties in the Intensity-dependent Coupling T-C Model

研究了初始光场为压缩相干态依赖强度耦合的Ｔａｖｉｓ－Ｃｕｍｍｉｎｇｓ模型中的场熵演化和光子统计特性．讨论了压缩参量对场熵演化和光子统计的影响，并发现在某些特定时刻出现了类似“Ｓｃｈｒｏｄｉｎｇｒ－Ｃａｔ”态中的奇相干态，但它不是纯态，而是相干态｜α＞和｜－α＞宏观迭加统计混合态．

in this paper,we have investigated the evolution of the field entropy and photon statistical properties in the intensity-dependent coupling T-C model which the field initiallyin squeezed coherent state.The influence of squeezed parameterson on the evoltion ofthe field entropy and photon statistical properties are discussed.We found analogous"Schrodinger-Cat"state(analogous odd coherent state)in particular time.But it is not apure state.It is statistical mixturse state of macroscopic superpositions of the coherent states|α>and |-α>.