新纠缠态表象的构建及其性质  

New Entangled State Representation and Its Property

作　　者：余海军[1] 杜建明[1] 

机构地区：[1]淮南师范学院物理系,安徽淮南232001

出　　处：《量子光学学报》2011年第4期280-283,共4页Journal of Quantum Optics

基　　金：安徽高校省级自然科学研究项目(KJ2011Z339KJ2011Z359);淮南师范学院自然科学研究项目(2010LK08)

摘　　要：运用有序算符内积分(IWOP)技术,构建了^x2-^p1和^x1-^p2的共同本征态|η〉,并分析了该新纠缠表象的Schmidt分解形式。另外,我们还得到纠缠态|η〉的共轭态|ξ〉,同时计算了它们的内积。最后我们给出了新双模压缩算符S2=μ∫dπ2η|μη〉〈η|的显式,并分析了其压缩特性。In this paper, we give the explicit form of the common eigenvectors ｜η） of x2 - P1 and x1 - P2 by the use of the integration within an ordered product （IWOP） technique, and the Schmidt decomposition of ｜η〉 is also given. In addition, we derive another entangled state ｜ ε〉 which is the conjugate state of ｜η〉,the inner product （ε ｜ η〉 is also calculated. Finally, the new two-mode squeezing operator S2=u∫d2η/π ｜uη〉〈η｜ is constructed and the squeezed property is analyzed simultaneously.

关 键 词：IWOP技术 新纠缠态表象 新双模压缩算符 

分 类 号：O431[机械工程—光学工程]