论文标题
具有明确的上和下限的量子密钥分布的新协议，秘密密钥速率
New protocols for quantum key distribution with explicit upper and lower bound on secret key rate
论文作者
论文摘要
我们提出了两种用于量子密钥分布（QKD）的新方案，这些方案既不需要纠缠，也不需要理想的单光子源，从而可以通过市售的单光子来源实现。这些协议被证明是针对多次攻击的安全性的，包括拦截和一类集体攻击。我们根据关键率得出界限，并证明特定类型的经典预处理可以增加可忍受的误差限制。观察到量子资源和向窃听器（EVE）揭示的信息之间的权衡，通过使用其他量子资源可以实现较高的效率。具体而言，我们提出的协议在效率方面以更多的量子资源为代价优于SARG04协议。
We present two new schemes for quantum key distribution (QKD) that neither require entanglement nor an ideal single-photon source, making them implementable with commercially available single-photon sources. These protocols are shown to be secure against multiple attacks, including intercept-resend and a class of collective attacks. We derive bounds on the key rate and demonstrate that a specific type of classical pre-processing can increase the tolerable error limit. A trade-off between quantum resources and information revealed to an eavesdropper (Eve) is observed, with higher efficiency achievable through the use of additional quantum resources. Specifically, our proposed protocols outperform the SARG04 protocol in terms of efficiency at the cost of more quantum resources.
