强度高斯分布对多模偶相干态高次振幅压缩特性的影响  

The Influence of Intensity Gaussian Distribution on Amplitude Squeezing Properties of Multimode Functional Even Coherent State

作　　者：刘宝盈[1] 陈永庄[1] 李英[1] 杨志勇[2] 

机构地区：[1]商洛师范专科学校物理系,量子光学与量子信息研究所,陕西商洛726000 [2]西安电子科技大学技术物理学院,陕西西安710071

出　　处：《商洛师范专科学校学报》2005年第2期22-26,共5页Journal of Shangluo Teachers College

基　　金：陕西省教育厅专项科研基金资助项目[03JK212;04JK123]

摘　　要：利用多模压缩态理论,研究了多模泛函偶相干态的等幂次振幅压缩特性,结果发现:当压缩次数为奇数时,两正交相位分量可呈现互补对称的等幂次振幅压缩效应,其压缩程度、压缩深度及压缩幅度与压缩次数、态间叠加几率幅、各模的经典强度和经典相位的空间分布函数等强烈地非线性关联.进一步研究发现,对由经典强度为基模高斯分布的两个三模光场构成的多模泛函偶相干态,其压缩特性与理论分析结果并不完全相同.By utilizing the theory of multimode squeezed state,the characteristics of generalized nonlinear equal-power amplitude squeezing of the multimode functional even coherent state is studied,and it is found, when the squeezed number is an odd number,the two quadrature components of the state can present symmetry equal-power amplitude squeezing effect,the squeezed degree,the squeezed depth and the squeezed amplitude are related intensively to the squeezed number,the superposition probability, the classical intensity and initial phase of each mode of the state and other parameters.The further research shown that the conclusions are not completely the same as the theoretical results if the classical intensity of the two three light-fields of the multimode functional even coherent state according to ground mode circular Gaussian distribution.

关 键 词：多模压缩态 多模泛函相干态 多模泛函偶相干态 等幂次振幅压缩 经典强度 高斯分布 

分 类 号：O431.25[机械工程—光学工程]