基于GHZ型态的非对称循环量子隐形传态  

Asymmetric Cycle Quantum Teleportation Based on GHZ-type State

作　　者：唐茜 柏明强 余松 莫智文 TANG Qian;BAI Mingqiang;YU Song;MO Zhiwen(School of Mathematical Sciences,Sichuan Normal University,Chengdu 610066,Sichuan)

机构地区：[1]四川师范大学数学科学学院,四川成都610066

出　　处：《四川师范大学学报（自然科学版）》2023年第4期488-496,共9页Journal of Sichuan Normal University（Natural Science）

基　　金：国家自然科学基金(11671284);四川省应用基础研究项目(2017JY0197)。

摘　　要：提出利用GHZ型态的张量积作为量子信道,实现任意单粒子、Bell态和GHZ态的非对称循环(受控)量子隐形传态的2个方案.在方案1中,3个参与者Alice、Bob及Charlie以9粒子纠缠态为量子信道,Alice、Bob及Charlie对自己粒子进行Bell态、单粒子测量并公布测量结果,三方根据所有测量结果对各自粒子进行相应的幺正变换,即可实现非对称循环量子隐形传态.在方案2中,增加一个控制方David,Al-ice、Bob、Charlie及控制方David共享12粒子纠缠态为量子信道,在控制方David的作用下,Alice把自己的单粒子态传递给Bob,Bob把自己的Bell态传递给Charlie,同时,Charlie也将自己的GHZ态传递给Alice.仅当David与三方相互合作时,非对称循环受控隐形传态才能实现.Two schemes are proposed to realize the asymmetric cycle(controlled)quantum teleportation of arbitrary single parti-cle,Bell state and GHZ state by using the tensor product of GHZ-type state as the quantum channel.In scheme 1,three participants Alice,Bob and Charlie use the entangled state of nine particles as the quantum channel.Then,Alice,Bob and Charlie measure their own particles in Bell state and single particle and publish the measurement results.Finally,the three participants can realize asymmet-ric cycle quantum teleportation by making corresponding unitary transformations of their respective particles through all the measurement results.In scheme 2,we add a controlling party David.Alice,Bob,Charlie and controller David to share the entangled state of twelve particles as quantum channel.Under the controller David’s function,Alice convey her single particle state to Bob,Bob put his own Bell state to Charlie,and at the same time,Charlie also pass his own GHZ state to Alice.Asymmetric cyclic controlled teleportation can be achieved only when David and the three parties cooperate.Furthermore,the feasibility of this scheme is investigated.

关 键 词：GHZ型态 幺正变换 非对称循环量子隐形传态 非对称循环受控量子隐形传态 

分 类 号：O413[理学—理论物理]