一类q变形广义相干迭加态的高次方压缩特性  

Higher power squeezing properties of a class of the superposition of the q-deformed generalized coherent states

作　　者：任珉[1] 倪燕茹[2] 马爱群[3,4] 康冬鹏[5] 刘树田[5] 

机构地区：[1]广州大学工程抗震研究中心,广东广州510405 [2]泉州师范学院公共基础部,福建泉州362000 [3]广州大学城建学院,广东广州510925 [4]黑龙江大学物理科学与技术学院,黑龙江哈尔滨150080 [5]哈尔滨工业大学物理系,黑龙江哈尔滨150001

出　　处：《广州大学学报（自然科学版）》2009年第1期20-23,共4页Journal of Guangzhou University:Natural Science Edition

摘　　要：提出了一类q变形非简谐振子广义相干态a|β>+beiψ|βeiδ>.研究了这种迭加态的高次方压缩.结果表明:其可能高次方压缩次数可表示为k≠2πn/δ,这里n是整数.当δ=π时,压缩次方数只可能是奇数;当δ取其他值时,压缩次方数可以是偶数.这些结果表明:对于可能的压缩次方数,相位差起着关键性的作用,但是a(b)和β的作用不能忽视.We proposed a class of the superposition state α｜β〉＋be^iφ｜βe^iδ〉based on the q-deformed generalized coherent states. The higher power squeezing properties of these superposition states are studied. The results show that the power of the squeezing can be expressed as k≠2πn/δ, with n an integer and δ the phase difference between the two generalized ＇coherent states. When δ = π, the power of squeezing can only be odd, when δ takes other values, the squeezing power can be even. These results show that the parameter phase difference δ plays an important role in determining the possible squeezing power, the role of a （b） and β can not be neglected.

关 键 词：量子光学 高次方压缩 非简谐振子 Q变形 广义相干态 

分 类 号：O431.2[机械工程—光学工程]