一种强度不等的新型两态叠加多模叠加态光场的等阶N次方Y压缩效应  

THE PROPERTY OF GENERALIZED NONLINEAR EQUAL-ORDER N-th POWER Y-SQUEEZING IN A NEW TYPE OF UNEQUALLED-INTENSITY MULTI-MODE SUPERPOSITION STATE LIGHT FIELD WITH THE SUPERPOSITION OF MACROSCOPICALLY DISTINCT TWO QUANTUM STATE

作　　者：王菊霞[1] 杨志勇[2,3] 侯洵[2,4] 韩小卫[1,2] 薛红[1,2] 

机构地区：[1]渭南师范学院量子光学与光子学研究室,渭南师范学院物理系,渭南714000 [2]西北大学光子学与光子技术研究所,西北大学光电子技术省级重点开放实验室,西安710069 [3]西北大学现代物理研究所 [4]中国科学院西安光学精密机械研究所,瞬态光学技术国家重点实验室

出　　处：《光子学报》2002年第2期129-134,共6页Acta Photonica Sinica

基　　金：陕西省自然科学基金 ( 2 0 0 0 SL1 0 );陕西省教育厅专项科研基金 ( 99JK0 91 );西北大学科学基金 ( 99NW38)资助项目~~

摘　　要：本文构造了由多模虚共轭相干态 |{ i Z(a) *j }〉q与多模虚共轭相干态的相反态|{ -i Z(b) *j }〉q这两者的线性叠加所组成的一种强度不等的新型两态叠加多模叠加态光场|Ψ(ab) 〉q.利用多模压缩态理论 ,对态 |Ψ(ab) 〉q的等阶 N次方 Y压缩特性进行了详细研究 .结果发现 :该态在一定条件下可呈现出周期性变化的任意奇数阶和任意偶数阶的等阶 N次方 Y压缩效应 ,而在特殊条件下 ,则呈现出等阶 N次方In this paper,a new type of unequalled-intensity unsymmetric multi-mode superposition state light field |Ψ (ab)> q is constructed,which is made of the linear superposition of macroscopically distinct two quantum states named the multi-mode imaginary conjugate coherent state |{iZ (a) * j}> q and the contrary state |{-iZ (b) * j}> q of multi-mode imaginary conjugate coherent state |{iZ (b) * j}> q repactively.By using the general theory of multi-mode squeezed state,the property of generaized nonlinear equal-order N-th power Y-squeezing of the state |Ψ (ab)> q mentioned above is studied firstly in detail.It is found that if some quantization conditions are satisfied,the state |Ψ (ab)> q can presents any even-order and any odd-order equal-order N-th power Y-squeezing effect that changes periodically,and if the special conditions are satisfied,the state |Ψ (ab)> q can always present the phenomena of equal-order N-th power Y-squeezing degenerate.

关 键 词：非对称两态叠加 多模叠加态光场 等阶N次方Y压缩 等阶N-Y最小测不准态 等阶N次方Y压缩简并 量子光学 多模压缩态 

分 类 号：O431.2[机械工程—光学工程]