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二粒子纠缠态的隐形传态的三种方案
引用本文:范笃学,李响,杨武,郭克涛,符力平. 二粒子纠缠态的隐形传态的三种方案[J]. 长沙交通学院学报, 2006, 22(1): 76-80
作者姓名:范笃学  李响  杨武  郭克涛  符力平
作者单位:1. 中南大学,物理科学与技术学院,湖南,长沙,410083
2. 湖南大学,应用物理系,湖南,长沙,410082
摘    要:
提出3种利用2个二粒子纠缠态作为量子通道,来传输一个未知的二粒子纠缠态的方案。首先考虑使用最大纠缠态作为量子通道,然后考虑使用非最大纠缠态。发现在使用非最大纠缠态作为量子通道时,通过引进一个辅助粒子,并构造一个幺正变换矩阵,即可以一定的几率完成二粒子纠缠态的隐形传输。

关 键 词:纠缠态  量子态的隐形传送  幺正变换
文章编号:1000-9779(2006)01-0076-05
收稿时间:2005-09-12
修稿时间:2005-09-12

Three Schemes of Teleporting a Two-particle Entangled State
FAN Du-xue,LI Xiang,YANG Wu,GUO Ke-tao,FU Li-ping. Three Schemes of Teleporting a Two-particle Entangled State[J]. Journal of Changsha Communications University, 2006, 22(1): 76-80
Authors:FAN Du-xue  LI Xiang  YANG Wu  GUO Ke-tao  FU Li-ping
Affiliation:1. College of Physical Science and Technology, Central South University, Changsha 410083, China; 2. Department of Applied Physics, Hunan University, Changsha 410082, China
Abstract:
Three schemes of teleporting a two-particle entangled state via two pairs of entangled particles are proposed.The maximally entangled states are first taken as quantum channels,then the case of(nonmaximally) entangled channels is considered.We find that when the channels are nonmaximally (entangled) states by introducing an ancillary qubit and constructing an unitary transformation properly,teleportation of two-particle entangled state can be implemented with certain probability.
Keywords:entangled state  teleportation  unitary transformation
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