态|Ψ^((3))〉_q中广义电场分量的偶数次N次方Y压缩  

GENERALIZED NONLINEAR EQUAL-POWER N-TH POWER Y-SQUEEZING OF GENERALIZED ELECTRIC FIELD COMPONENT IN THE STATE |Ψ~ (3) >_q

作　　者：万慧军[1] 杨志勇[1] 胡晓云[2] 余小光[3] 周美娟[3] 李化茂[3] 

机构地区：[1]西北大学光子学与光子技术研究所 [2]西北大学物理学系,西安710069 [3]井冈山师范学院物理系,江西吉安343009

出　　处：《光子学报》2002年第12期1430-1434,共5页Acta Photonica Sinica

基　　金：陕西省自然科学基金 (批准号 :2 0 0 1SL0 4;2 0 0 0SL1 0 );陕西省教育厅专项科研基金 (批准号 :99JK0 91 ;0 0JK1 1 5 );西北大学科学基金 (批准号 :99NW3 8)

摘　　要：构造了由多模复共轭虚相干态、多模复共轭虚相干态的相反态和多模复共轭相干态的线性叠加所组成的一种新型的三态叠加多模叠加态光场 |Ψ(3) 〉q 利用多模压缩态理论 ,研究了态 |Ψ(3) 〉q中广义电场分量的偶数次等幂次N次方Y压缩特性 结果发现 :态|Ψ(3) 〉q 是一种典型的三态叠加多模非经典光场 ;当压缩次数N等于 2P且P为 2m′ + 1(m′ =0 ,1 ,2 ,… ,… )时 ,如果各模的初始相位 φj( j=1 ,2 ,3,… ,… ,q)、态间的初始相位差(θ1 -θ2 )、(θ1 -θ3)和 (θ2 -θ3) ,以及各单模相干态光场的总的平均光子数等分别满足各自的取值条件 ,则在这种情况下态 |Ψ(3) 〉q 的广义电场分量可呈现出偶数次的广义非线性等幂次 2 ( 2m′ + 1 )It is constructed that a new kind of multimode light field state |Ψ (3) > q Which is composed of the linear superpositions of macroscopically distinct three quantum states named multimode complex conjugation imaginary coherent state,the contrary state of multimode complex conjugation imaginary coherent state and multimode complex conjugation coherent state. By using the theory of multimode squeezed states established recently, the generalized nonlinear even number power equal power N th power Y squeezing effects of generalized electric field component in the state |Ψ (3) > q is studied firstly in detail. It is found that if the squeezed power number N=2P and P=2m′+1 (here, m′=0,1,2,...,...), While some certain conditions are satisfied respectively by the initial phase φ j (here, j=1,2,3,...,...,q) of each mode in the state |Ψ (3) > q , by the initial phase difference (θ 1-θ 2)?(θ 1-θ 3) and (θ 2-θ 3) between any two states in the state |Ψ (3) > q and by the sum of mean photon numbers of all the single mode coherent state light field, generalized electric field component in the state |Ψ (3) > q can always display the effects of even number power generalized nonlinear equal power 2(2 m′+1) th power Y squeezing.

关 键 词：态|Ψ^(3)〉q 偶数次N次方Y压缩 三态叠加 多模非经典光场 多模压缩态 广义电场分量 等幂次N次方Y压缩 量子光学 

分 类 号：O431.2[机械工程—光学工程]