超纠缠态的量子密钥分配方案
时间:2020-08-16 21:07 来源:毕业论文 作者:毕业论文 点击:次
摘要:在本论文中,我们提出基于双光子两个自由度上的高维超纠缠态的量子密钥分配方案。以双光子两个自由度上的三维超纠缠态为出发点,通过对单光子两个自由度上的基矢测量,详细描述了基于双光子两个自由度上的四维超纠缠态的量子密钥分配方案,并对量子密钥分配方案进行安全性分析。该量子密钥分配方案可以推广到双光子两个自由度上的任意高维超纠缠态的情况。54220 毕业论文关键词:双光子,超纠缠态,量子密钥分配,安全性分析 Abstract: In this paper, we proposed a quantum key distribution scheme based on two-photon high dimension hyper-entangled states in two degrees of freedom. We began with two-photon three-dimensional hyper-entangled state in two degrees of freedom, through a single-photon base vector measurement in two degrees of freedom, detailed description the quantum key distribution scheme based on two-photon four-dimensional hyper-entangled states in two degrees of freedom, and discussed security analysis for the quantum key distribution scheme. This quantum key distribution scheme can be generalized to two-photon arbitrary high-dimensional two-freedom hyper-entangled states. Key words: two-photon, hyper-entangled state, quantum key distribution, security analysis 目录 1绪论..4 1.1经典密码学4 1.2量子密码学5 1.3量子密钥分配的物理安全性.6 1.4本论文的工作.7 2量子密钥分配协议简介.8 2.1第一个量子密钥分配协议——BB84协议8 2.2B92协议..8 2.3E91协议..9 3基于双光子高维超纠缠态的量子密钥分配方案.10 3.1双光子三维超纠缠态11 3.2双光子四维超纠缠态12 3.3双光子四维超纠缠态的量子密钥分配过程14 3.4安全性分析..15 3.5双光子任意高维最大纠缠态16 总结18 参考文献..19
致谢20 |