第Ⅱ种强度不等的两态叠加多模叠加态光场的等阶N次方H压缩 1腔模总数与压缩阶数两者之积取偶数的情形  

THE PROPERTY OF EQUAL-ORDER N-TH POWER H-SQUEEZING OF MULTI-MODE LIGHT FIELD STATE OF DIFFER INTENSITY OF SUPERIMPOSITIONS STATE WITH DISTINGUISHABLE TWO QUANTUM STATES IN THE KIND(Ⅱ) 1. THE PRODUCTS OF CAVITY MODE NUMBER AND SQUEEZE

作　　者：薛红[1] 杨志勇[1] 韩小卫[1] 侯洵[1] 孙秀泉[2] 王菊霞[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]渭南师范学院量子光学与光子学研究室,渭南714000

出　　处：《光子学报》2002年第6期641-646,共6页Acta Photonica Sinica

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

摘　　要：利用多模压缩态理论研究了第 种强度不等的非对称两态叠加多模叠加态光场 | Ψ( ab) 〉q的等阶 N次方 H压缩特性 .结果发现 :1 )当腔模总数 q与压缩阶数 N的乘积取偶数 ,亦即 q N=2 p时 ,无论 p=2 m( m=1 ,2 ,3,… ,… ) ,还是 p=2 m+ 1 ( m=0 ,1 ,2 ,3,… ,… ) ,只要各模的初始相位差 ( φ( a)j - φ( b)j )、态间的初始相位差 ( θ( a R)nq - θ( b I)nq )及光子干涉项的幅度 ∑qj=1R( a)j R( b)j 等分别满足一定的条件 ,则态 |Ψ( ab) 〉q的第一和第二正交分量总可分别呈现出周期性变化的等阶 N次方H压缩效应 .2 )当 q N =2 p且 p=2 m+ 1 ( m=0 ,1 ,2 ,3,… ,… )时 ,若构成态 |Ψ( ab) 〉q的两个不同的量子光场态中各对应模的强度 (即平均光子数 )和初始相位相等 ,亦即 R( a)j =R( b)j 和 φ( a)j =φ( b)j( j=1 ,2 ,3,… ,q) ,则态 | Ψ( ab) 〉q可呈现出“等阶 N次方 H压缩简并”By utilizing the theory of multi mode squeezed states,the property of equal order N th power H squeezing effect on multi mode light field state of differ intensity of nonsymmetry superimpositions state|Ψ (ab) Ⅱ> q with distinguishable two quantum states in the kind(Ⅱ) is discussed.It is found that 1)when the products of cavity mode number and squeezed order is an even number,that is so called qN=2p,no matter what p=2m(m=1,2,3...,...),or p=2m+1(m=0,1,2,3,...,...),under the conditions the first and the second quadrature component of state|Ψ (ab) Ⅱ> q can always present the effect of periodic changed equal order N th power H squeezing .2)when qN=2p and p=2m+1(m=0,1,2,3,...,...),if the constructed state |Ψ (ab) Ⅱ> q of the intensity of corresponding mode(that is so called everage number)and its initial phases is equal,that is so called R (a) j=R (b) j and φ (a) j=φ (b) j(j=1,2,3,...,...,q),so the state |Ψ (ab) Ⅱ> q can always present equal order N th power H squeezing of degenerate squeezing abbearance.

关 键 词：非对称两态叠加 多模量加态光场 等阶N次方H压缩简并 等阶N-H最小测 不准态 量子光学 多模压缩态 腔膜总数 压缩阶数 

分 类 号：O431.2[机械工程—光学工程]