Efficient multi-party quantum key agreement by cluster states

被引：86
|
作者：
Sun, Zhiwei [1 ,2 ]
Yu, Jianping [1 ,2 ]
Wang, Ping [1 ]
机构：
[1] Shenzhen Univ, Coll Informat Engn, Shenzhen 518060, Guangdong, Peoples R China
[2] Shenzhen Univ, ATR Key Lab Natl Def Technol, Shenzhen 518060, Guangdong, Peoples R China
来源：
QUANTUM INFORMATION PROCESSING | 2016年 / 15卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Quantum key agreement; Multi-party; Cluster states; Efficient; SECURE DIRECT COMMUNICATION; BELL STATES; PROTOCOL; ENTANGLEMENT;
D O I：
10.1007/s11128-015-1155-1
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Aquantum key agreement (QKA) protocol by utilizing a four-photon cluster state is proposed in this paper. The proposed QKA protocol extends the two-party QKA protocol with four-qubit cluster state (Shen et al. in Quantum Inf Process 13: 2313-2324, 2014) into a multi-party case. The block transmission technique and decoy photons method are used in the presented protocol. Meanwhile, the qubit efficiency of the presented protocol is also improved by using the dense coding method. Security analysis shows that the proposed protocol is secure against both participant and outside attacks.
引用
收藏
页码：373 / 384
页数：12
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