利用非Bell基测量实现三粒子W态的隐形传送  

Teleportation of a three-particle W state without the Bell-state measurement

作　　者：陈美香[1] 李洪才[1] 黄志平[1] 杨榕灿[1] 

机构地区：[1]福建师范大学物理与光电信息科技学院,福建福州350007

出　　处：《量子电子学报》2006年第3期393-398,共6页Chinese Journal of Quantum Electronics

基　　金：福建省自然科学基金资助项目(A0210014)

摘　　要：研究非Bell基测量的未知三粒子W态的隐形传态方案。先利用原子和腔场的共振相互作用制备未知三原子W态。接着,利用两原子同时在强经典驱动场驱动下和单模腔场发生相互作用,产生态的演化,来制备EPR对量子信道。最后利用和制备量子信道同样的方法来实现未知三原子W态的隐形传送。在传送过程中,可忽略腔场热作用和腔延迟作用的影响。传送成功的总几率为1。We propose a scheme for teleportation of an unknown three-atom W state without the Bell-state measurement. Firstly, we prepare an unknown three-atom W state by the resonant interaction between the atoms and the cavity. Then a quantum channel is prepared by sending two atoms through a single-mode cavity field, and driving them by a strong classical field at the same time. During the interaction between the atoms and the cavity, the states of these atoms are evolved. After the interaction, we prepare the EPR states, which form the quantum channel. Finally, we implement the teleportation of the unknown three-atom W state using the way of preparing the quantum channel. During the teleportation, the effects of thermal field and cavity decay are all eliminated. The success probability is 1.0.

关 键 词：量子光学 隐形传态 三原子W态 EPR对 量子信道 BELL基测量 

分 类 号：O431.2[机械工程—光学工程]