面向可扩展高速率测量设备无关量子密钥分发网络的非对称协议
量子物理
2019-10-23 v3
摘要
测量设备无关量子密钥分发（MDI-QKD）能够消除探测器侧信道并防范针对探测器的所有攻击。MDI-QKD 的未来在于一种量子网络，该网络通过不可信中继节点为众多用户提供服务。在真实量子网络中，各信道的损耗不同，且用户会随时间被添加或删除。为适配这些特征，我们提出一类协议，允许用户独立选择其最优强度设置以补偿不同的信道损耗。此类协议实现了一种可扩展的高速率 MDI-QKD 网络，可轻松应用于损耗各异的信道，并允许用户在任意时刻动态添加/删除而不影响现有用户的性能。
引用
@article{arxiv.1807.03466,
title = {Asymmetric Protocols for Scalable High-Rate Measurement-Device-Independent Quantum Key Distribution Networks},
author = {Wenyuan Wang and Feihu Xu and Hoi-Kwong Lo},
journal= {arXiv preprint arXiv:1807.03466},
year = {2019}
}
备注
Changed the title to better represent the generality of our method, and added more discussions on its application to alternative protocols (in Sec. II, the new Table II, and Appendix E with new Fig. 9). Added more conceptual explanations in Sec. II on the difference between X and Z bases in MDI-QKD. Added additional discussions on security of the scheme in Sec. II and Appendix D