摘要
以事先分享的两个广义最大纠缠GHZ态为量子信道,提出了一个三维单粒子态双向受控隐形传态协议。在该协议中,遥远的两方可以在第三个遥远方的控制下同时、确定性地交换他们的三维单粒子态,这种交换在没有控制者的许可下是不会成功的。为了推广这一协议,采用投影测量和正算子值测量,分别提出了两个双向受控的三维单粒子态隐形传输协议。在这两个协议中,两个广义非最大纠缠GHZ态被用作量子信道来连接三个合法参与者,量子任务总能以一定的概率来完成。
A perfect protocol for bidirectional controlled teleportation (BCT) of three- dimensional single- particle states is put forward by using pre-shared two generalized maximally entangled GHZ states as the quantum channel. In the protocol, two distant parties can simultaneously and deterministically exchange their three-dimensional singleparticle states under control of a third remote party in such a way that it cannot succeed without permission of the controller. In order to extend this protocol, two protocols for bidirectional controlled teleportation of three-dimensional single-particle states are proposed by using projective measurement and positive operator-valued measurement,respectively. In these two protocols, two generalized non-maximally entangled GHZ states are employed as the quantum channel linking three legitimate participants, and the quantum task can also be achieved with certain probability.
作者
彭家寅
PENG Jiayin(College of Mathematics and Information Sciences, Neijiang Normal University, Neijiang, Sichuan 641199, China)
出处
《计算机科学与探索》
CSCD
北大核心
2019年第9期1613-1620,共8页
Journal of Frontiers of Computer Science and Technology
基金
国家自然科学基金
教育部数学与应用数学专业综合改革
四川省教育厅项目
四川省科技厅项目~~
关键词
双向受控隐形传态
三维量子态
广义GHZ态
投影测量
正算子值测量
bidirectional controlled teleportation
three-dimensional quantum state
generalized GHZ state
projective measurement
positive operator-valued measurement