三态叠加多模泛函叠加态光场的高次压缩——广义磁场分量等幂次振幅压缩效应研究  

Higher-power squeezing in the macroscopically distinct three quantum states superposition multimode functional superposition state light field——On effect of equal-power amplitude-squeezing of generalized magnetic field component

作　　者：白少民[1] 杨志勇[2] 张忠平[3] 

机构地区：[1]延安大学物理与电子信息学院,陕西延安716000 [2]西安电子科技大学技术物理学院,西安710071 [3]西安空军工程大学文理学院,陕西西安710077

出　　处：《原子与分子物理学报》2005年第1期70-76,共7页Journal of Atomic and Molecular Physics

基　　金：陕西省自然科学基金 ( 2 0 0 1SL0 4) ;延安大学科研课题 (YD2 0 0 3 1 0 3)资助的课题

摘　　要：构造了由多模真空态｜ { 0 j}〉q 与两个空间强度分布特征不同的多模复共轭泛函相干态｜ {f(a) f (x ,y ,z) }〉q和｜ {f(b) f (x ,y ,z) }〉q的线性叠加组成的三态叠加多模泛函叠加态光场｜ψ( 3 )f 〉q,利用多模压缩态理论 ,研究了态 ｜ψ( 3 )f 〉q 中广义磁场分量的等幂次高次振幅 (Y)压缩特性。结果表明 :在一定的条件下 ,态｜ψ( 3 )f 〉q 的广义磁场分量可呈现出周期性变化的等幂次高次Y压缩效应 ;It is constructed in this paper that the three-states superposition multimode functional superposition state light field ｜ψ^((3))_f〉_q is made up of the multimode vacuum state ｜{0_j}〉_q, and the two different multimode complex functional coherent states ｜{f~^((a)*)_f(x,y,z)}〉_q and ｜{f~^((b)*)_f(x,y,z)}〉_q which have rather different spatial intensity distribution characteristic according to the superposition principle of quantum state in quantum mechanics. The properties of equal-power higher-power amplitude-squeezing (Y-squeezing) of generalized magnetic field 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 magnetic-field component of the state ｜ψ^((3))_f〉_q can display the effect of generalized nonlinear equal-power higher-power Y-squeezing which changes periodically and alternatively; and the asymmetrical spatial distribution of the classical intensity and the classical amplitude, and the spatial distribution features of the initial classical phase of light-field in the state ｜ψ^((3))_f〉_q would have a direct influence upon the squeezed degree of equal-power higher-power Y-squeezing present by the generalized magnetic-field component in the state ｜ψ^((3))_f〉_q.

关 键 词：量子光学 多模复共轭泛函相干态 广义磁场分量 高次Y压缩 

分 类 号：O431.2[机械工程—光学工程]