多模泛函叠加态光场的广义电场分量等幂次H压缩特性  

Equal-power H-squeezing of generalized electric field component in multimode coherent state light field of functional with superposition of three macroscopically distinct quantum states

作　　者：白少民[1] 张建民[1] 杨志勇[2] 许定国[2] 

机构地区：[1]陕西师范大学物理学与信息技术学院,陕西西安710062 [2]西安电子科技大学技术物理学院,陕西西安710071

出　　处：《陕西师范大学学报（自然科学版）》2004年第4期43-47,共5页Journal of Shaanxi Normal University：Natural Science Edition

基　　金：陕西省自然科学基金资助项目(2001SL04;2000SL10);陕西省科技攻关项目(2002K05-G9)

摘　　要：构造了由多模复共轭泛函相干态|{f(a) j(x,y,z)}〉q,|{f(b) j(x,y,z)}〉q和多模真空态|{0j}〉q线性叠加组成的三态叠加多模叠加态光场|ψ(3)f〉q.利用多模压缩态理论,研究了态|ψ(3)f〉q中广电场分量(即第二正交相位分量)的等幂次高次H压缩特性.结果表明,在一定条件下,态|ψ(3)f〉q的广义电场分量可呈现出周期性变化的等幂次高次H压缩效应;光场经典强度和经典振幅的任意非对称空间分布特征和光场经典初始相位的任意空间分布特征等对上述等幂次高次H压缩效应的压缩程度和压缩深度将产生直接影响.It is Constructied in this paper that the three_states superposition multimode functional superposition state light field ｜ψ^((3))_f〉_q is made up of the two different multimode complex functional coherent states ｜｛f^((a))_j(x,y,z)｝〉_q and ｜｛f^((b))_j(x,y,z)｝〉_q which have rather different spatial intensity distribution characteristic, and the multimode vacuum state ｜｛0_j｝〉_q according to the superposition principle of quantum state in quantum mechanics. the properties of equal_power higher_power H_squeezing of generalized electric field component (or the second perpendicular phase component) of the state( ｜ψ^((3))_f〉_q) is studied firstly by utilizing the multimode squeezed state theory. It is shown that under a series of fixed conditions, the generalized electric_field component of the state( ｜ψ^((3))_f〉_q) can display the effect of generalized nonlinear equal_power higher_power H_squeezing which changes periodically and alternatively; and the any asymmetrical spatial distribution of the classical intensity and the classical amplitude, and the any spatial distribution features of the initial classical phase of light_field in the state ｜ψ^((3))_f〉_q will have a direct influence upon the squeezed degree and squeezed depth of equal_power higher_power H_squeezing present by the generalized electric_field component in the state ｜ψ^((3))_f〉_q.

关 键 词：多模复共轭泛函相干态 三态叠加 多模压缩态 广义电场分量 高次H压缩 光场 量子光学 

分 类 号：O431.2[机械工程—光学工程]