摘要
在双模压缩真空态|ξ>的第一个场上模增加m个光子构成增加光子双模压缩真空态α+m|ξ>,再由α+m|ξ>构造出增加光子双模压缩真空态的叠加态|Ψ>,并通过数值计算研究了叠加态|Ψ>的非经典特性.结果表明:在一定的条件下,叠加态|Ψ>的平均光子数呈现出崩塌与复原的振荡现象,而且亚泊松特性和位相压缩都比单个α+m|ξ>态的情况强.
The superposition state from the photon-added two-mode squeezed vacuum state a+m |ξ> is constructed, and its nonclassical properties are numerically studied. The results show that under certain conditions, the mean photon number of the superposition state exhibits oscillating phenomenon of collapses and revivals,both sub-Poissonian photon statistical character and the phase squeezing of the field in the superposition state are stronger than those in the single photon-added two-mode squeezed vacuum state.
出处
《广东教育学院学报》
2002年第2期35-37,共3页
Journal of Guangdong Education Institute
关键词
增加光子双模压缩真空态
叠加态
平均光子数
亚泊松特性
位相压缩
量子光学
photon-added two-mode squeezed vacuum state
superposition state
average photon number
sub-Poissonian character
phase squeezing
