论文标题
量子密钥分布网络的有效路由
Efficient Routing for Quantum Key Distribution Networks
论文作者
论文摘要
随着量子密钥分布变得越来越实用，关于如何有效利用它在大规模网络中以及在大距离内的问题变得越来越重要。为此，在这项工作中，我们在由量子中继器和受信任的节点组成的网络中运行时基于E91纠缠的QKD协议的性能进行了建模。我们为该网络提出了许多路由协议，并在不同的用法方案中比较了它们的性能。通过我们的建模，我们根据设备性能（例如，中继器的测量设备的质量）研究了最佳放置和受信任节点的数量与中继器的数量。在此过程中，我们发现了有趣的课程，以确定即将到来的量子网络需要改善哪些重要的物理方面，以提高安全的通信速度。
As quantum key distribution becomes increasingly practical, questions of how to effectively employ it in large-scale networks and over large distances becomes increasingly important. To that end, in this work, we model the performance of the E91 entanglement based QKD protocol when operating in a network consisting of both quantum repeaters and trusted nodes. We propose a number of routing protocols for this network and compare their performance under different usage scenarios. Through our modeling, we investigate optimal placement and number of trusted nodes versus repeaters depending on device performance (e.g., quality of the repeater's measurement devices). Along the way we discover interesting lessons determining what are the important physical aspects to improve for upcoming quantum networks in order to improve secure communication rates.
