单模加光子双模SU(2)相干态的量子统计特性  

Quantum statistics property of the one-mode photon-added two-mode SU(2) coherent state

作　　者：万广仁[1] 黄纯青[1] 路洪[1] 

机构地区：[1]佛山科学技术学院物理系,广东佛山528000

出　　处：《佛山科学技术学院学报（自然科学版）》2004年第3期1-5,共5页Journal of Foshan University(Natural Science Edition)

基　　金：广东省自然科学基金(020127);广东省教育厅自然科学基金(Z02069)资助

摘　　要：构造了单a模加光子双模SU(2)相干态|M,ξ;m〉=Ama+m|M,ξ〉,并用数值方法研究它的量子统计特性。结果表明:在双模SU(2)相干态的其中一个模(a模)加光子后,两场模的光子统计分布依然保持反关联特征,对Cauchy-Schwartz不等式的违反程度、a模光场光子统计的亚泊松分布特性以及另一个模(b模)光场的反聚束性得到加强,而b模光场光子统计的亚泊松分布特性和a模光场的反聚束性却减弱。The mode of a photon-added double-mode SU(2) coherent state｜M,ξ;m〉=A_(Mξm)a^(+m)｜M,ξ〉is introduced and its quantum statistics property is investigated with numeric method. The results exhibit that when the photons are added to the mode aof the double mode SU(2) coherent state, the two field modes can preserve anti-relation character. The violation of Cauchy-Schwartz inequality, the sub-Poissonian photon statistics property of mode aand anti-bunching effect of mode bare enhanced, but the sub-Poissonian photon statistics property of mode band anti-bunching effect of mode a are weakened.

关 键 词：双模SU(2)相干态 单模加光子 数值方法 量子统计特性 

分 类 号：O431.2[机械工程—光学工程]