新型多模叠加态光场的等N次幂Y压缩特性  

Characteristics Equal-Order N-th Y Squeezing of a New Type of Multi-mode Superposition Light Fields

作　　者：王明祥[1] 王晋国[1] 魏俊波[1] 胡卓蕊[1] 

机构地区：[1]长安大学理学院,陕西西安710064

出　　处：《长安大学学报（自然科学版）》2006年第3期107-110,共4页Journal of Chang’an University(Natural Science Edition)

基　　金：陕西省教育厅专项科研基金项目(04JK123)

摘　　要：根据量子力学的线性叠加原理,用多模虚奇相干态和多模复共轭偶相干态组成四态叠加多模叠加态光场|Ψo(e4)Ⅷ〉q,运用多模压缩态理论得到了|Ψo(e4)Ⅷ〉q的等N次幂Y压缩的一般理论结果。通过对该理论结果的数值分析发现:当压缩幂次N、腔模总数q、各模相干态的平均光子数R2j,以及奇相干态和多模复共轭偶相干态叠加几率幅的模ro、re等参数的取值满足一定的条件时,态|Ψ(oe4)Ⅷ〉q可呈现等幂次N Y最小测不准态,“半相干态效应”、半压缩效应、第一正交分量呈现等N次幂Y压缩或第二正交分量呈现等N次幂Y压缩。According to the linear superposition principle mechanics, the four-state superposition multimode superposition state light field ｜ψ^（4） oe Ⅷ〉q is composed by multi mode imaginary odd and complicit conjugation coherent states, and its general results of N-th power Y squeezing are got out by the multimode squeezing state theory. By numeric analyzing, it is found that： when parameters squeezed order N, total number of multi-mode q, average photon numbers of every mode state R^2j. and modulo of superposition probability amplitudes ro （r,） are taken different values, the state ｜ψ^（4） oe Ⅷ〉q will represent by the equal-order N-Y minimum uncertainty states, half coherent states effect, half squeezing state effect, the first or the second orthogonal component represent N-th power Y squeezing. 6 refs.

关 键 词：量子光学 多模叠加态光场 压缩态 等幂次N—Y压缩 

分 类 号：O431.2[机械工程—光学工程]