Unknown State Transmission Using GHZ States via Collective Noise Channel  

作　　者：董莉 修晓明 高亚军 迟锋 

机构地区：[1]Department of Physics,Bohai University

出　　处：《Communications in Theoretical Physics》2010年第8期269-272,共4页理论物理通讯（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No.10704011;the Research Project of the Education Department of Liaoning Province of China under Grant No.2008006

摘　　要：Two protocols for transmitting an unknown single-photon state and an unknown non-maximally entangledEPR state are presented by using the quantum channel of three-phonton GHZ (Greenberger-Horne-Zeilinger) state,which can be realized with unitary success probability when collective noise is taken into account.The protocols canalso be generalized to transmit multi-photon state or to realize quantum communication in collective noise channel.

关 键 词：quantum information quantum teleportation collective-dephasing noise collective-rotation noise 

分 类 号：TN911.4[电子电信—通信与信息系统]