作　　者： ; ; ; ; ;

机构地区： 哈尔滨师范大学呼兰学院物理系

出　　处： 《物理学报》 2005年第5期2049-2058,共10页

摘　　要： 研究了由两个任意相干态构成的叠加态 |ψ〉 =a|β〉 +beiφ|mβeiφ〉的量子统计性质 ,结果表明此种叠加态普遍存在着压缩效应或光子反群聚效应 .叠加态的量子效应依赖于 β2 和振幅系数m ,同时改变相干态间的位相差δ和叠加系数间的位相差 φ也将对叠加态的压缩效应或反群聚效应起着重要的作用 . In this paper, the quantum statistical properties of the superposition state, a 1 β&RANGBRAC; + be(iφ) 1 mβ e(iδ) which involves two arbitrary coherent states, are investigated. The results show that this kind of super-position states generally exhibits squeezing effect or anti-bunching effect. The quantum effects of the superposed state depend on β(2) and the amplitude coefficient m, as well as the changes of the phase difference between two coherent states δ, and the phase difference between two superposition coefficients φ also plays an important role in squeezing or anti-bunching effects.

关 键 词： 相干态 叠加态 压缩效应 反群聚效应 量子光学 统计性质

领　　域： [机械工程] [理学] [理学]