分组交换网络中的量子密钥分发
Quantum key distribution in a packet-switched network
摘要：
分组交换通过允许有效地使用网络资源进行数据传输而彻底改变了因特网。在以前的工作中，我们介绍了量子网络中的分组交换作为通往量子互联网的路径，并提出了一个概念验证，其应用到量子密钥分发（QKD）。在本文中，我们概述了一个三步的方法，在分组交换网络的关键速率优化。我们的模拟结果表明，实际的密钥速率可以在一个16用户的网络中实现，没有光存储容量。在一定的网络条件下，我们可以通过使用超低损耗光纤延迟线来存储网络延迟期间的数据包来提高密钥速率。我们还发现，在类似于自由空间QKD中的实时选择的策略中实现截止存储时间可以显着提高性能。我们的工作表明，分组交换迫切适合作为QKD的平台，这是发展大规模集成量子网络的重要一步。
英文摘要：
Packet switching revolutionized the Internet by allowing the efficient use of network resources for data transmission. In a previous work, we introduced packet switching in quantum networks as a path to the Quantum Internet and presented a proof-of-concept for its application to quantum key distribution (QKD). In this paper, we outline a three-step approach for key rate optimization in a packet-switched network. Our simulated results show that practical key rates may be achieved in a sixteen-user network with no optical storage capacity. Under certain network conditions, we may improve the key rate by using an ultra-low-loss fiber delay line to store packets during network delays. We also find that implementing cut-off storage times in a strategy analogous to real-time selection in free-space QKD can significantly enhance performance. Our work demonstrates that packet switching is imminently suitable as a platform for QKD, an important step towards developing large-scale and integrated quantum networks.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
