Quantum Network Key Distribution Protocol Topological Optimization

Jincheng Zhang

Published Sep 3, 2026• 0 citations

Abstract

This paper investigates the optimization of topological structures within quantum key distribution (QKD) protocols. The core claim is that strategic topological optimization can significantly enhance key distribution efficiency and security. The proposed methodology leverages analytical analysis of quantum network topologies to identify optimal key distribution schemes. Specifically, we explore how the arrangement of nodes and connections within a quantum network impacts the performance of protocols like BB84 and E91. The underlying mechanism involves utilizing the inherent properties of quantum entanglement to achieve highly efficient and secure key exchange. We present a framework for evaluating different topological configurations based on metrics such as key generation rate, channel loss, and eavesdropping detection probability. The results demonstrate a clear correlation between optimized topologies and improved QKD performance. Furthermore, we address the challenges associated with implementing these optimized topologies, including considerations for quantum repeater placement and network scalability. This research contributes to the advancement of practical QKD systems by providing a rigorous approach to topological design.

DOI: 10.5281/zenodo.22268578

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