Faithful Controlled Teleportation of an Arbitrary Unknown Two-Atom State via Special W-States and QED Cavity  

作　　者：WANG Ya-Hong SONG He-Shan YU Chang-Shui 

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

出　　处：《Communications in Theoretical Physics》2008年第5期1199-1202,共4页理论物理通讯（英文版）

基　　金：The project supported by National Natural Science Foundation of China under Grant Nos.60472017,10575017,and 10704011;Science Foundation of the Educational Department of Laioning Province under Grant No.2006B014

摘　　要：A scheme is proposed for the controlled teleportation of an arbitrary two-atom state via special W-type entangled states and QED cavity. The scheme does not involve the direct joint Bell-state-measurement （BSM）. We show that the quantum information is split into two parts~ thus the original atomic state cannot be perfectly restored by the receiver without the other agent＇s collaboration and classical communication. In addition, the physical realization of this scheme is not difficult.

关 键 词：teleportation W state QED cavity 

分 类 号：O57[理学—粒子物理与原子核物理]