基于五粒子团簇态的类GHZ态隐形传送及其量子成本  

Teleportation of GHZ-Like States via Five-Particle Cluster States and Its Quantum Cost

作　　者：李言然 韩泽楠 杨佳碧 章礼华 LI Yanran;HAN Zenan;YANG Jiabi;ZHANG Lihua(School of Electronic Engineering and Intelligent Manufacturing,Anqing Normal University,Anqing 246133,China)

机构地区：[1]安庆师范大学电子工程与智能制造学院,安徽安庆246133

出　　处：《安庆师范大学学报（自然科学版）》2023年第3期49-53,共5页Journal of Anqing Normal University(Natural Science Edition)

基　　金：安徽省重点研究与开发计划项目(202004f06020021);安徽省高等学校省级质量工程项目(2021cyxy046,2020jyxm1080,2020szsfkc0548);高校自然科学研究项目(KJ2019A0564)。

摘　　要：基于量子纠缠通道的量子通信是一种新颖的通信方式。本文提出了以五粒子团簇态作为量子信道来实现三粒子类GHZ态的量子态传送。该方案给出了接收方在接收信息时所使用的幺正矩阵,其可依据发送方的测量结果将接收方的粒子恢复到所传送的量子态,传送方案总成功概率为1。同时利用Gray码变换方法和二级酉矩阵分解方法,研究了态传送过程中恢复信息幺正操作的量子线路,并分析了幺正操作的量子成本。本文研究结果可为量子通信提供可选方案和基于量子成本的优化方案。Quantum communication based on quantum entanglement channel is a novel communication method.In this paper,we proposed a quantum state teleportation scheme that uses five particle cluster states as quantum channels to transmit three particle GHZ-like states.The unitary matrix used by the receiver when receiving information is given,which can recover the particles of the receiver to the transmitted quantum state according to the measurement results of the sender.The total suc-cess probability of the teleportation scheme is 1.Using Gray code transformation method and two-level unitary matrix decom-position method,the quantum circuit for recovering information unitary operation in the process of state transmission is stud-ied,and the quantum cost of unitary operation is analyzed.The research results can provide alternative schemes and optimiza-tion schemes based on quantum cost for quantum communication.

关 键 词：量子通信 量子隐形传态 量子门 量子成本 

分 类 号：O413.1[理学—理论物理]