态｜Ψ_i^((4))〉_q的广义非线性等幂次高次振幅压缩  

Generalized nonlinear equal power higher power amplitudesqueezing in the state |Ψ_i^((4))〉_q

作　　者：白少民[1] 许定国[1] 蒙文[1] 安毓英[1] 

机构地区：[1]西安电子科技大学技术物理学院

出　　处：《西安电子科技大学学报》2004年第1期59-62,共4页Journal of Xidian University

基　　金：陕西省自然科学基金资助项目(2000SL10;2001SL04);陕西省科技攻关课题(2002K05 G9);陕西省教育厅专项科研基金(00JK115)资助

摘　　要：构造了由多模虚奇相干态和多模虚偶相干态的线性叠加所组成的一种新型的四态叠加多模叠加态光场｜Ψ(4)i〉q,利用多模压缩态理论,研究了态｜Ψ(4)i〉q的等幂次高次振幅压缩特性.结果发现:⑴在压缩幂次N为偶数时,态｜Ψ(4)i〉q恒处于等偶数次幂N-Y最小测不准态;⑵在压缩幂次N为奇数时,在不同条件下,态｜Ψ(4)i〉q的第一和第二正交相位分量可分别呈现等奇数次幂高次振幅压缩效应.By using the theory of multimode squeezed state, the property of generalized nonlinear equal-power high power amplitude squeezing of the multimode imaginary odd and even coherent is studied in detail. It is found that (1) when the squeezing power N is an even number, the state ｜Ψ^((4))_i〉_q always stays in an equal even power N-Y minimum uncertainty state and (2) when the squeezing power N is an odd number, under certain different conditions, the first and second components of the state ｜Ψ^((4))_i〉_q can display the equal odd power high power amplitude squeezing effect.

关 键 词：光场压缩态 量子噪声 N-Y最小测不准态 等奇数次幂高次振幅压缩效应 线性叠加 等偶数次幂 

分 类 号：O432.1[机械工程—光学工程]