Quantum Key Agreement Protocols with GHZ States Under Collective Noise Channels

被引：0
|
作者：
Ji-hong Guo
Zhen Yang
Ming-Qiang Bai
Zhi-Wen Mo
机构：
[1] Sichuan Normal University,Institute of Intelligent Information and Quantum Information
[2] Research Center of Sichuan Normal University,National
[3] Sichuan Normal University,Local Joint Engineering Laboratory of System Credibility Automatic Verification
来源：
International Journal of Theoretical Physics | 2022年 / 61卷
关键词：
Quantum key agreement; GHZ state; Collective dephasing noise; Collective rotation noise; Qubit efficiency;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
It is necessary to consider the impact of collective noise in quantum key agreement protocols. However, the efficiency of quantum key agreement protocols is generally low under the influence of collective noise. In order to improve the efficiency of the protocols, this paper proposes quantum key agreement protocols that can resist collective noise based on the measurement correlation of logical GHZ states. The efficiency analysis shows that the protocol has a qubit efficiency of 28.57%, which is higher than other protocols. Also, the security analysis proves that the protocols are resistant to external attacks and participant attacks.
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