领头项相干态及其非经典性  

Leading terms Coherent States and their Non classical Properties

作　　者：彭石安[1] 

机构地区：[1]苏州铁道师范学院物理系

出　　处：《量子光学学报》1997年第2期65-70,共6页Journal of Quantum Optics

基　　金：国家教委华东师范大学量子光学开放实验室基金

摘　　要：为了从相干态的内部数态结构上去研究量子光场的性质，继截头相干态后，我们又引入一类量子光场态——领头项相干态｜α，ｍ＞，它们由Ｇｌａｕｂｅｒ相干态的数态展开式中截止数态｜ｍ＞的前ｍ＋１个数态项构成。通过对这些量子态性质的研究，清楚地显示出相干态的各有关性质是怎样作为领头项相干态相应性质的极限而出现的，以及领头项相干态的非经典性是如何随着项数的增多而逐渐丧失的。In order to explore the properties of quantized light field from the internal number state structure of Glauber coherent states, we introduce a new class of states denoted by |α,m> , which are called leading terms coherent states and it consists of the first m number state terms in the expansion of the coherent states, The prensent study shows clearly how the properties of the coherent states emerge as the limits of corresponding properties of leading terms coherent states, thus opens a way to research for transition conditions between classical and non classical states.

关 键 词：邻头项 相干态 反群聚 压缩效应 量子光场 

分 类 号：O431[机械工程—光学工程]