通过cluster态实现两粒子纠缠态的量子几率隐形传态(英文)  

Probabilistic Teleportation of Two-particle Entangled State via a Cluster State

作　　者：于立志[1] 朱军方[2] 

机构地区：[1]阜阳师范学院物理系,安徽阜阳236041 [2]中国科学技术大学量子信息实验室,安徽合肥230026

出　　处：《发光学报》2009年第5期580-584,共5页Chinese Journal of Luminescence

基　　金：supported by the Program of the Young Teachers of College in Anhui Province(2008jq1118);The Youth Pro-gram of Fuyang Teachers College(2008LQ05,2008LQ04)~~

摘　　要：提出通过一个四粒子cluster非最大纠缠态作为量子信道来实现一未知两粒子纠缠态的量子几率隐形传态方案。在此方案中,纠缠态可以实现一定的几率传输,此几率由cluster态中绝对值较小的两个系数决定。如果我们用cluster最大纠缠态作为量子信道,此时几率隐形传态就成了一般的隐形传态,即成功传输的几率为100%。A scheme for probabilistic teleportation of an unknown two-particle entangled state via a four-qubit nonmaximally entangled cluster state as quantum channel is proposed. In this scheme, the unknown entangled states can be teleported with a certain probability, which is determined by the smallest two of the coefficients＇ absolute values of the cluster state. What＇s more, if quantum channel is maximally entangled cluster state, the probabilistic teleportation becomes usual teleportation.

关 键 词：量子几率隐形传态 cluster态 BELL态测量 幺正变换 

分 类 号：O431[机械工程—光学工程]