摘要
将双模压缩算符进行推广,构建了三模压缩算符,并将其作用在三模粒子数态上来构建三模压缩粒子数态。利用数值计算的方法研究了该量子态的量子特性。讨论了压缩参数变化和光子数变化对压缩效应和反聚束效应的影响。计算结果表明:压缩参数在一定值范围内,态呈现出压缩效应,并且随着光子数的增大,压缩效应减弱。另一方面,态中a1模的反聚束效应随着光子数的增大而减弱,而a2和a3模始终呈现出反聚束效应。
In this paper based on generalizing of two-mode squeezed operator, we construct a new three-mode squeezed operator. Further, the three-mode squeezed partical-number state is proposed by the technique of integration with an ordered product of operators. Its squeezing and antibunching effects are analyzed. The results indicate that its squeezing is weakened with the increase of photon number, and the antibunching effect of a1-mode field is also weakened with the increase of photon number; on the other hand, its a2-mode field and a3-mode field both exhibit antibunching effects.
出处
《激光与光电子学进展》
CSCD
北大核心
2013年第3期167-173,共7页
Laser & Optoelectronics Progress
基金
福建省自然科学基金(2011J01018)资助课题
关键词
量子光学
三模压缩粒子数态
压缩效应
反聚束效应
quantum optics
three-mode squeezed particale-number states squeezing
antibunching effect
