Preparation of multi-atom specially entangled W-class state and splitting quantum information  

作　　者：WANG YaHong SONG HeShan 

机构地区：[1]School of Information Science and Engineering, Dalian Polytechnic University, Dalian 116034, China [2]School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China

出　　处：《Chinese Science Bulletin》2009年第15期2599-2605,共7页

基　　金：Supported by the National Natural Science Foundation of China (Grant Nos. 60472017, 10575017);Educational Fund of Liaoning Province

摘　　要：We give a protocol to prepare specially entangled W-class state of multi-atom which can be used to exactly teleport an arbitrarily unknown two-level two-atom state. During the process, the quantum in-formation is split into n parts and the original quantum information can be sent to anyone of the n re-cipients with the other n-1 recipients' collaboration. In addition, we will give a suggestion to realize this scheme via QED cavity.We give a protocol to prepare specially entangled W-class state of multi-atom which can be used to exactly teleport an arbitrarily unknown two-level two-atom state. During the process, the quantum information is split into n parts and the original quantum information can be sent to anyone of the n recipients with the other n-1 recipients＇ collaboration. In addition, we will give a suggestion to realize this scheme via QED cavity.

关 键 词：原子纠缠 量子信息 腔量子电动力学 制备 分裂 两原子 部分和 

分 类 号：O413.1[理学—理论物理] O413[理学—物理]