广义GHZ态的受控量子隐形传态  

Controlled quantum teleportation of generalized GHZ states

作　　者：张国帅 赵晓龙 范兴奎[1] ZHANG Guoshuai;ZHAO Xiaolong;FAN Xingkui(School of Science,Qingdao University of Technology,Qingdao 266525,China)

机构地区：[1]青岛理工大学理学院,青岛266525

出　　处：《青岛理工大学学报》2022年第4期145-150,共6页Journal of Qingdao University of Technology

基　　金：国家自然科学基金资助项目(12005110);山东省自然科学基金资助项目(ZR2020QA078)。

摘　　要：为了实现广义GHZ态的受控量子隐形传态,引入控制者Charlie。Charlie拥有的粒子作为控制粒子起到控制线路是否传输的作用;根据待传量子态的纠缠类型,选择与待传量子态纠缠类型一致的广义GHZ态作为量子信道。同时根据初始态前N+1量子比特的纠缠类型选取合适的联合测量基,最终接收方只需进行一个2阶的幺正变换即可完成任意N量子比特广义GHZ态的传送。这样的受控隐形传输方案具有安全性高和节约量子资源两方面的优势。In order to realize the controlled quantum teleportation of generalized GHZ States,a controller Charlie is introduced in this study.Charlie's particles are used as control particles to control whether the line transmits or not.According to the entanglement type of the quantum state that is to be transmitted,the generalized GHZ state is selected as the quantum channel.At the same time,according to the entanglement type of N+1-qubit prior to the initial state,the appropriate joint measurement basis is selected.Finally,the receiver only needs a second-order unitary transformation to complete the transmission of any N-qubit generalized GHZ state.Such controlled quantum teleportation has the advantages of high security and saving quantum resources.

关 键 词：量子光学 量子隐形传态 纠缠态 量子信道 

分 类 号：O431.2[机械工程—光学工程]