量子光学学报, 2009, 15 (4): 325, 网络出版: 2010-01-22
N粒子量子态的隐形传送的理论分析
A Theoretical Analysis of Teleportation ofN Particle Quantum State
Bell 基测量 隐形传送 变换算符 塌陷态 Bell-state measurement teleportation transformation operator collapses states
摘要
在量子态的隐形传送中,如果要对一个任意N粒子态实现隐形传送,发送者Alice 和接受者Bob 之间须建立一个非局域的2N个纠缠粒子作为量子通道,发送者对需传送的N粒子量子态与属于自己的纠缠对中的粒子分别进行N次Bell基测量,则将有22N个塌陷态,即有22N个变换算符,本文推导出变换算符的计算公式,并给出这22N个变换算符之间的关系,从而使接受者对自己拥有的粒子进行相应的变换大为简便,进一步由变换算符性质分析量子隐形传送的必要条件及成功几率。
Abstract
In the process of Quantum teleportation if an arbitrary N particle quantum state teleportation is realized,the sender Alice and receiver Bob should establish a quantum channel which is a nonlocal 2N entangled particle.The sonder does n times Bell-state measurements to the N particle quantum state,which needs to be send,and those particles belongs to its entangled particle.There will be 22N callapses states and 22N transformation operators.In this paper both formula of the transformation operators and the relationship among 22N transformation operators are given.The possibillity of success and the necessary condition of quantum teleportation are also discussed.
徐建刚, 查新未. N粒子量子态的隐形传送的理论分析[J]. 量子光学学报, 2009, 15(4): 325. XU Jian-gang, ZHA Xin-wei. A Theoretical Analysis of Teleportation ofN Particle Quantum State[J]. Acta Sinica Quantum Optica, 2009, 15(4): 325.