Two Quantum Key Agreement Protocols Immune to Collective Noise

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• 作者：Ye-Feng He ; Wen-Ping Ma
• 关键词：Quantum cryptography ; Quantum key agreement ; Collective noise ; Logical quantum state
• 刊名：International Journal of Theoretical Physics
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：56
• 期：2
• 页码：328-338
• 全文大小：
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics, general; Quantum Physics; Elementary Particles, Quantum Field Theory; Theoretical, Mathematical and Computational Physics;
• 出版者：Springer US
• ISSN：1572-9575
• 卷排序：56

文摘

In this paper, two quantum key agreement protocols are proposed, which can resist against the collective-dephasing noise and the collective-rotation noise, respectively. These two protocols mainly utilize logical quantum states, the measurement correlation property of multi-particle entangled states and the delayed measurement technique. Moreover, they have no information leakage and are congenitally free from the Trojan horse attacks. The use of the decoy state technology and the delayed measurement technique makes them secure against both participant and outsider attacks. The efficiency analysis shows that the two protocols are very efficient.