基于n粒子GHZ态和单光子混合的量子安全直接通信  

Quantum secure direct communication based on the mixture of n-particle GHZ state and single photon

作　　者：周贤韬 江英华 ZHOU Xiantao;JIANG Yinghua(School of Information Engineering, Xizang Minzu University, Xianyang 712000, China)

机构地区：[1]西藏民族大学信息工程学院,咸阳712000

出　　处：《激光技术》2022年第1期79-84,共6页Laser Technology

基　　金：陕西省教育厅科研专项科学研究计划资助项目(19JK0889)。

摘　　要：为了提高量子安全传输效率,采用n粒子Greenberger-Horne-Zeilinger(GHZ)态的特性,对其与单光子混合的量子安全直接通信进行了研究,设计了通信的执行过程,讨论了通信的传输效率、量子比特利用率和编码容量,并对其安全性进行了理论分析。结果表明,该方案可以将信息的编码容量提升至(n+1)bit,将传输效率提升至200%。该协议能够抵御截获重发和测量重发攻击、特洛伊木马攻击和拒绝服务攻击以及辅助粒子攻击和纠缠攻击。In order to improve the efficiency of quantum secure transmission,the properties of n-particle Greenberger-Horne-Zeilinger(GHZ)state were used to study the quantum secure direct communication(QSDC)with single photon mixture.The implementation process of communication was designed.The transmission efficiency,quantum bit utilization,and coding capacity of communication were discussed,and its security was theoretically analyzed.Compared with other classical QSDC protocols,the results show that the coding capacity and the transmission efficiency can be respectively improved to(n+1)bit and 200%with this scheme.Security analysis shows that the protocol can resist interception and measurement retransmission attacks,Trojan horse attacks,denial of service attacks,auxiliary particle attacks and entanglement attacks.

关 键 词：物理光学 n粒子Greenberger-Horne-Zeilinger态 量子安全通信 编码容量 

分 类 号：TN918.1[电子电信—通信与信息系统]