Teleportation for an Ionic Entangled Internal State by Entanglement Swapping  

作　　者：郑小娟 方卯发 廖湘萍 蔡建武 

机构地区：[1]College of Physics and Information Science, Hunan Normal University, Changsha 410081 [2]School of Physics Science and Technology, Central South University, Changsha 410083

出　　处：《Chinese Physics Letters》2006年第8期1980-1983,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 10374025.

摘　　要：We present an effective scheme to teleport an unknown ionic entangled internal state via trapped ions without joint Bell-state measurement. In the constructed quantum channel process, we adopt entanglement swapping to avoid decrease of entanglement during the distribution of particles. Thus our scheme provides new prospects for quantum teleportation over longer distance. The distinct advantages of our scheme are that our scheme is insensitive to heating of vibrational mode and can be generalized to teleport an N-ion electronic entangled GHZ class state. Furthermore, in our scheme the success probability can reach 1.We present an effective scheme to teleport an unknown ionic entangled internal state via trapped ions without joint Bell-state measurement. In the constructed quantum channel process, we adopt entanglement swapping to avoid decrease of entanglement during the distribution of particles. Thus our scheme provides new prospects for quantum teleportation over longer distance. The distinct advantages of our scheme are that our scheme is insensitive to heating of vibrational mode and can be generalized to teleport an N-ion electronic entangled GHZ class state. Furthermore, in our scheme the success probability can reach 1.

关 键 词：DETERMINISTIC QUANTUM TELEPORTATION PODOLSKY-ROSEN CHANNELS TRAPPED IONS W-STATE 

分 类 号：O413[理学—理论物理]