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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
【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.
【Abstract】 We proposed a class of the superposition state α|β>+beiφ|βeiδ> 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.
【Key words】 quantum optics; higher power squeezing; nonharmonic oscillator; q-deformed; generalized state;
- 【文献出处】 广州大学学报(自然科学版) ,Journal of Guangzhou University(Natural Science Edition) , 编辑部邮箱 ,2009年01期
- 【分类号】O431.2
- 【下载频次】53