相空间中对称的纠缠相干态的纠缠量  

EVALUATOIN OF ENTANGLEMENT OF ENTANGLED COHERENTSTATES WITH SYMMETRY IN PHASE SPACE

作　　者：龚仁山[1] 

机构地区：[1]南昌大学物理学系,江西南昌330047

出　　处：《南昌大学学报（理科版）》2004年第3期276-277,284,共3页Journal of Nanchang University(Natural Science)

摘　　要：讨论了相空间中对称的两类纠缠相干态的纠缠与相干态的强度及两个双模相干态间的相对位相的关系,导出了计算纠缠量的解析表达式,进而分析了提高纠缠相干态的纠缠量的可能途径。This paper has studied two kinds of entangled coherent states with symmetry in phase space.It is proved that their entanglements have relations with the strength or relative phase factors of two two-mode coherent states.Some formulas for evaluating entanglements of these entangled coherent states are derived.Finally,some possible way for improving their entanglements are proposed.

关 键 词：纠缠相干态 相空间 对称 位相 解析表达式 双模 对位 

分 类 号：N02[自然科学总论—科学技术哲学] O431[机械工程—光学工程]