第I种非对称三态叠加多模叠加态光场的高次和压缩——第一正交分量的N次方H压缩效应  

Generalized Nonlinear High-power Sum-squeezing in the First Kind of Multimode Superposition State Light Field Composed of The Macroscopically Distinct Three Quantum States with Asymmetrical Unequal-intensity ——N-th Power H-Squeezing of Magne

作　　者：张佩瑢 安毓英[1] 杨志勇[1] 

机构地区：[1]西安电子科技大学技术物理学院

出　　处：《光子学报》2003年第2期230-234,共5页Acta Photonica Sinica

基　　金：陕西省自然科学基金 (批准号 :2 0 0ISL4);陕西省教委专项科研基金 (批准号 :99JK0 91);西北大学科学基金 (批准号 :99NW38)资助项目

摘　　要：构造了第I种强度不等的非对称三态叠加多模叠加态光场 | ψ1(ABC) 〉q 利用多模压缩态理论研究了态 | ψ1(ABC) 〉q 第一正交分量高次和压缩 结果发现 :①当构成态 | ψ1(ABC) 〉q 的三个多模相干态光场的强度不相等时 ,在一定条件下 ,态 | ψ1(ABC) 〉q 的第一正交分量可出现任意幂次的高次和压缩 ②当上述的三个多模相干态光场强度相等时 ,态 | ψ1(ABC) 〉q 的第一正交分量的高次和压缩现象消失 在这种情况下 ,态 | ψ1(ABC) 〉qA new type of multimode superposition state light field|ψ (ABC) 1> q is constructed, which is made of the macroscopically distinct three different multimode coherent states|{Z (A) j}> q?|{Z (B) j}> q and |{Z (C) j}> q with unsymmetry and unequalintensity. So the properties of generalized nonlinear highpower sumsqueezing (or N-th power H-squeezing)of the first perpendicular component are studied in detail by utilizing the multimode squeezed state theory established by Yang Zhiyong and Hou Xun published in Acta Photonica Sinica. It is found that:1) Under the conditions of unequal intensity of each mode and unsymmetry of the three multimode coherent states|{Z (A) j}> q?|{Z (B) j}> q and |{Z (C) j}> q,the first perpendicular component of the state |ψ (ABC) 1> q mentioned above can present any high-power sum-squeezing effects (or equal-power N-th power H-squeezing effects).2)Under the conditions of equal-intensity of each mode and symmetry of each one, the properties of high-power sum-squeezing of the first perpendicular component disappear, and the state|ψ (ABC) 1> q can only stay in the N-H minimum uncertainty state.

关 键 词：非对称三态叠加 多模叠加态光场 高次和压缩 N次方H压缩 N-H最小测不准态 

分 类 号：O431.2[机械工程—光学工程]