强度高斯分布对四态叠加多模泛函叠加光场和压缩特性的影响  

The Influence of Classical Intensity Gaussian Distribution on Sum Squeezing Properties of Four-states Superposition Multimode Functional Superposition State Light Field

作　　者：刘宝盈[1] 陈永庄[1] 杨志勇[2] 王宝珍[1] 

机构地区：[1]商洛师范专科学校量子光学与量子信息研究所物理系,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F10期59-62,66,共5页Journal of Shangluo Teachers College

基　　金：陕西省科技攻关项目(2002K05-G9);陕西省教育厅专项科研基金项目(03JK21204JK125)

摘　　要：构造了由多模泛函相干态、多模复共轭泛函相干态以及它们的相反态等几率线性叠加构成的多模泛函叠加态光场│Ψ(4)(fj)q〉.利用多模压缩态理论,研究了态│Ψ(4)(fj)q〉的等幂次和压缩特性,发现:当腔模总数与压缩次数之积为奇数时,两正交相位分量可呈现互补对称的等幂次和压缩效应,其压缩程度、压缩深度与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,对由经典强度为厄米高斯分布的四个三模光场构成的态│Ψ(4)(fj)q〉,只有第二正交相位分量呈现和压缩效应.It is constructed that the four-state superposition multimode functional superposition state light- field ｜Ψ.^（4）（fj）〉q composed of the multirnode functional coherent state,the multimode complex conjugate functional coherent state and their contrary states by equal probability according to the superposition principle of quantum state in quantum mechanics.By utilizing the theory of multimode squeezed state, the characteristics of generalized nonlinear equal-power sum-squeezing of the state is studied,and it is found,when the product of cavity-mode-number and squeezed number is an odd number,the two quadrature components of the state can present symmetry eqr^al-power sum-squeezing effect,and the squeezed degree,the squeezed depth are related intensively to the classical intensity and initial phase of each mode of the state and other parameters.The further research shown that only the second quadrature component of the state can present sum-squeezing effect if the classical intensity of the four three light-fields of the state ｜Ψ.^（4）（fj）〉q according to Hermitian Gaussian distribution.

关 键 词：多模压缩态 多模泛函相干态 和压缩效应 等幂次和压缩 经典强度 高斯分布 

分 类 号：O431.2[机械工程—光学工程]