最佳量子密钥分发网络:电容与安全性

IF 6.6 1区 物理与天体物理 Q1 PHYSICS, APPLIED npj Quantum Information Pub Date : 2024-04-29 DOI:10.1038/s41534-024-00828-7
Lorenzo Cirigliano, Valentina Brosco, Claudio Castellano, Claudio Conti, Laura Pilozzi
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引用次数: 0

摘要

位于量子通信网络任意点的用户之间的量子通信速率和安全性取决于网络的结构、扩展和通信信道的性质。在这项工作中,我们提出了一种基于可信中继网络的优化策略,该策略将经典网络方法与量子信息理论相结合。具体来说,通过适当定义量子通信效率函数,我们可以在安全性和量子通信速率之间取得平衡,从而确定网络中的最佳量子通信连接。然后将优化网络构建为最大量子通信效率连接的网络,并通过研究平均特性与节点数量和网络空间扩展的函数关系来评估其性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Optimal quantum key distribution networks: capacitance versus security

The rate and security of quantum communications between users placed at arbitrary points of a quantum communication network depend on the structure of the network, on its extension and on the nature of the communication channels. In this work we propose a strategy for the optimization of trusted-relays based networks that intertwines classical network approaches and quantum information theory. Specifically, by suitably defining a quantum communication efficiency functional, we identify the optimal quantum communication connections through the network by balancing security and the quantum communication rate. The optimized network is then constructed as the network of the maximal quantum communication efficiency connections and its performance is evaluated by studying the scaling of average properties as functions of the number of nodes and of the network spatial extension.

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来源期刊
npj Quantum Information
npj Quantum Information Computer Science-Computer Science (miscellaneous)
CiteScore
13.70
自引率
3.90%
发文量
130
审稿时长
29 weeks
期刊介绍: The scope of npj Quantum Information spans across all relevant disciplines, fields, approaches and levels and so considers outstanding work ranging from fundamental research to applications and technologies.
期刊最新文献
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