双光子J-C模型中的纠缠交换方案  

The Scheme of Entanglement Swapping in two-photon Jaynes-Cummings model

作　　者：刘红[1] 

机构地区：[1]华东师范大学物理系

出　　处：《甘肃联合大学学报（自然科学版）》2008年第2期43-44,81,共3页Journal of Gansu Lianhe University :Natural Sciences

摘　　要：我们利用原子及腔场中双光子相互作用提出了一种不需要Bell基测量的纠缠交换方案.经过纠缠交换,可以在事先没有任何相互作用的原子和腔场之间产生纠缠.并对得到的纠缠态进行纯化以得到最大纠缠态,使其更好的应用到量子信息处理中.Based on the interaction of atoms and two-photon in cavity QED,the author proposes an entangiement swapping scheme without joint measurement using a two-photon Jaynes-Cummings model. By means of entanglement swapping, we get a nonmaximally entangled pair between an atom and a cavity mode which previously have not any interaction with each other. Through entanglement concentration, we can obtain a maximally entangled sxate. It can be used in quantum information processing.

关 键 词：纠缠态 纠缠交换 腔QED 双光子J-C模型 

分 类 号：O431[机械工程—光学工程]