基于Bell态与其纠缠性质的量子密钥分发  

Quantum key distribution protocol based on Bell states and its entanglement

作　　者：冯志宏[1] 谭晓青[1] 梁翠[2] 

机构地区：[1]暨南大学信息科学技术学院数学系,广州510632 [2]广东工业大学应用数学学院,广州510006

出　　处：《计算机应用研究》2015年第3期873-876,880,共5页Application Research of Computers

基　　金：国家自然科学青年基金资助项目(61003258)

摘　　要：为了提高量子密钥分发的可行性、安全性和效率,在通信双方间通过构建经典信道和量子信道,提出了一种基于Bell态与其纠缠性质的量子密钥分发协议。该协议可行、安全、简单有效,通过严格的数学推导证明了窃听者不可能获取密钥而不被发现。此外,得出了该协议效率与安全的数学模型,并通过MATLAB仿真分析了协议效率与安全的关系。In order to improve the feasibility, security and efficiency, this paper proposed a quantum key distribution protocol based on Bell states and its entanglement by establishing the classical channel and quantum channel between the two parties of communication. The protocol is feasibility, safe, simple and efficient. And it proves that the eavesdropper cannot obtain the se- cret key without being found through the rigorous mathematical derivations. It also got the mathematical model of efficiency and security, and analysed their relationship by MATLAB emulation.

关 键 词：量子密钥分发 量子纠缠 Bell测量 效率与安全 

分 类 号：TN918.6[电子电信—通信与信息系统]