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多模叠加态|Ψe4,Ⅲ〉q中广义电场分量的N次方H压缩
引用本文:许定国,安毓英,杨志勇.多模叠加态|Ψe4,Ⅲ〉q中广义电场分量的N次方H压缩[J].光子学报,2002,31(8):929-933.
作者姓名:许定国  安毓英  杨志勇
作者单位:许定国(西安电子科技大学技术物理学院,西安,710071;商洛师专量子光学与量子信息研究所,陕西商州,726000);安毓英(西安电子科技大学技术物理学院,西安,710071);杨志勇(西北大学光子学与光子技术研究所,西安,710069)
基金项目:陕西省自然科学基金(2001SL04;2000SL10)、陕西省教育厅专项科研基金(00JK115)和西北大学科学基金(99NW38)资助项目
摘    要:利用多模压缩态理论,详细研究了由多模偶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|Ψe4,Ⅲ〉q中广义电场分量的等幂次N次方H压缩特性结果表明:1)在腔模总数q与压缩次数N的乘积q·N=4m(m=1,2,3,…)的条件下,态|Ψe4,Ⅲ〉q的广义电场分量可恒处于等幂次NH最小测不准态2)在q·N=4m’+2(m’=0,1,2,…)的条件下,当态间的初始相位差(θ12)、各模的初始相位和 φj,以及各模平均光子数之总和 Rj2等分别满足一定的取值条件时,态|Ψe4,Ⅲ〉q的广义电场分量总可呈现出周期性变化的偶数次的等幂次N次方H压缩效应.

关 键 词:四态叠加  多模叠加态  多模压缩态  广义电场分量  等幂次N次方H压缩  等幂次N-H最小测不准态
收稿时间:2002/1/10
修稿时间:2002年1月10日

THE EQUAL-POWER N-TH POWER H-SQUEEZING OF THE GENERALIZED ELECTRIC FIELD COMPONENT IN MULTIMODE SUPERPOSITION STATE LIGHT FIELD |Ψ(4)e,Ⅲ〉q
Xu Dingguo,An Yuying,Yang Zhiyong.THE EQUAL-POWER N-TH POWER H-SQUEEZING OF THE GENERALIZED ELECTRIC FIELD COMPONENT IN MULTIMODE SUPERPOSITION STATE LIGHT FIELD |Ψ(4)e,Ⅲ〉q[J].Acta Photonica Sinica,2002,31(8):929-933.
Authors:Xu Dingguo  An Yuying  Yang Zhiyong
Institution:1. School of Technology Physics, Xidian University, Xi’an, P.R.China 710071;2. Institute of Quantum Optics & Quantum Information Science, Shangluo Normal College, Shaanxi Shangzhou, P.R.China 726000;3. Institute of Photonics & Photon-Technology, Northwest University, Xi’an, P.R.China 710069
Abstract:A new type of four-state superposition multimode superposition state light field |Ψe4,Ⅲ〉q composed of the multimode even and multimode imaginary-even coherent state light field is constructed in this paper,The properties of the equal-power N-th power H-squeezing of the generalized electric field component in the state |Ψe4,Ⅲ〉q is studied in detail by utilizing multimode squeezed state theory.It is found that:1) When the products between cavity- mode-number q and squeeting power number N is a even number 4 mor qN=4m(here,m=0,1,2,...),the generalized electric field component of the state |Ψe4,Ⅲ〉q is always stayed in equal-power N-H minimum uncertainty state.2) when qN=4m’+2(m’=0,1,2,...)if the sum φj of the initial phase of each mode,and the initial phase difference(θ12) between the two states mentioned above and the sum Rj2 of the mean value of photon numbers of each mode take the different fixed values,the generalized electric field component of the state|Ψe4,Ⅲ〉q can always display the equal-power N-th power H-squeezing effect that changes periodically.
Keywords:Four state superpositions  Multimode superposition state light field  Multimode squeezed state  Generalized electric field component  Equal-power N-th power H-squeezing  Equal power N-H minimun uncertainty state
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