摘要
本文研究了相干态的叠加态的量子统计性质．结果表明，相干态的叠加态仅存在奇次幂的高阶压缩效应，而不存在偶次幂的高阶压缩效应．给出了高阶压缩和高阶反聚束效应与叠加系数间的函数关系．高阶压缩要求叠加系数的辐角取值满足ｃｏｓθ＞ｅｘｐ（－２｜α｜２），而高阶反聚束效应则要求０．５π＜θ＜１．５π．
In this paper,quantum statistical properties of
superposition states of coherent states are studied Odd order power squeezing effect can
appear in superposition states of coherent state,but even order power squeezing effect cannot
in it The function relation between higher order squeezing and superposition coefficient are
obtained,the condition of higher order squeezing is cos θ> -exp(-2|α| 2) The function
relation between antibunching effect and superposition coefficient are presented,the condition of
antibunching effect is 0 5π<θ<1 5π The relevant results of even and odd coherent states
are contained in more general conclusions of this paper as special cases
出处
《光子学报》
EI
CAS
CSCD
1999年第3期198-201,共4页
Acta Photonica Sinica
基金
江苏省教育厅自然科学基金
关键词
相干态
叠加态
高阶压缩
量子光学
量子统计
Superposition states of coherent states
Higher order squeezing properties
Higher order
antibunching effect
