第Ⅳ种四态叠加多模叠加态光场的等幂次N次方Y压缩  

The equal-order N-th power Y squeezing of four-state superposition multi-mode superposition states light field

作　　者：王明祥[1] 

机构地区：[1]长安大学理学院应用物理系,陕西西安710064

出　　处：《西安科技大学学报》2006年第3期435-438,共4页Journal of Xi’an University of Science and Technology

基　　金：陕西省自然科学基金(2005SL042000SL10);陕西省教育厅专项科研基金(00JK11599JK091)

摘　　要：构造的第Ⅳ种四态叠加多模叠加态光场|Ψ0(4),Ⅳ〉q是由多模复共轭奇相干态|Ψ(*2),O〉q和多模虚奇相干态|Ψ(i2),O〉q这两者的线性叠加所组成的。利用新近建立的多模压缩态理论,对态|Ψ0(4),Ⅳ〉q的广义非线性等幂次N次方Y压缩特性进行了详细研究。结果发现:1)当压缩次数N为偶数,且N=4m(m=1,2,3,…)时,若各模的初始相位φj,态间的初始相位差1θ-2θ等分别满足一定的取值条件,态|Ψ0(4),Ⅳ〉q的第一正交相位分量总可呈现出等幂次N次方Y压缩效应;2)当压缩次数N为偶数,且N=4m-2(m=1,2,3,…)时,若各模的初始相位φj,态间的初始相位差1θ-2θ等分别满足一定取值条件,态|Ψ(04),Ⅳ〉q的第二正交相位分量总可呈现出等幂次N次方Y压缩效应。By utilizing the multi - mode squeezing state theory, the properties of the equal - order N - th power Y squeezing of stateare studied. According to the linear superposition principle of quantum mechanics, the fourth kind of four - state superposition multi - mode superposition states light field │ψ0^（4）,Ⅳ〉q is constructed with multi - mode complex conjugate - odd coherent state （│ψ0^（2）,Ⅳ〉q） and imaginary- odd coherent state（ │ψ0^（2）,O〉q）. The new properties of the equal- order N- th power Y squeezing of state │ψ0^（4）,Ⅳ〉q are found. When squeezing order N is an even number, initial phase φi and initial phase difference θ1-θ2 in different conditions, 1 ） When N = 4m（ m = 1,2,3,… ） the first orthogo- nal phase components of state│ψ0^（4）,Ⅳ〉q represents the equal - order N - th power Y squeezing; 2 ）.When N = 4m＇ - 2 （ m＇ = 1,2,3, … ）, the second orthogonal phase components of state │ψ0^（4）,Ⅳ〉q represents N- th power Y squeezing effects.

关 键 词：四态叠加 多模叠加态光场 多模复共轭奇相干态 多模虚奇相干态 等幂次N次方Y压缩 

分 类 号：O431.2[机械工程—光学工程]