基于非最大纠缠态的非对称双向隐形传态及优化  

Asymmetric Two-way Stealth Teleportation and Optimization Based on Non-maximum Entangled States

作　　者：肖钧匀 柏明强 李文靖 刘芷仪 XIAO Junyun;BAI Mingqiang;LI Wenjin;LIU Zhiyi(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）》2022年第5期660-665,共6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(2020YFG0290).

摘　　要：利用非最大纠缠态为信道,提出一种非对称的双向隐形传态方案,并进行优化.对比最大纠缠态,选择非最大纠缠态作为信道能够节约更多纠缠资源和量子信息.在本方案中,Alice把未知的n粒子GHZ态传给Bob,同时,Bob把未知的m粒子GHZ态传给Alice.在(2n+2m)粒子态为信道的情况下,执行Bell测量能实现非对称双向量子隐形传态,并能以一定的概率完成双方初始粒子态的重构.特别地,当n=2,m=1时,显然需要6粒子态作为信道执行量子任务.但是,针对本次特殊量子任务,可以采用粒子数更少的信道来进一步优化,如4粒子态作为信道.信道粒子数更少,可以使信道更加的稳固而不易受到干扰或破坏,提高整个过程传输效率,使方案得到优化.Using a non-maximum entangled state as a channel,an asymmetric two-way stealth teleportation scheme is proposed and optimized.Compared with the maximum entangled state,a non-maximum entangled state as a channel can save more entangled resources and quantum information.In this scheme,Alice passes the unknown n-particle GHZ state to Bob,and at the same time,Bob passes the unknown m-particle GHZ state to Alice.In the case of(2n+2m)particle state as the channel,performing Bell measurement can achieve asymmetric two-way quantum teleportation,and can complete both sides’reconstruction of particle states with a certain probability.In particular,when n=2,m=1,obviously the 6-particle state is needed as a channel to perform quantum tasks.However,for this special quantum task.We can use fewer particles in a channel for further optimization,such as the 4-particle state as a channel.With fewer particles in a channel,it can make the channel more stable without interference or destruction,improve the transmission efficiency of the entire process,and optimize the scheme.

关 键 词：非最大纠缠态 幺正变换 隐形传态 投影测量 

分 类 号：O413[理学—理论物理]