Scalable Quantum Key Distribution Protocol

Jincheng Zhang

Published Sep 7, 2026• 0 citations

Abstract

This paper presents a novel scalable Quantum Key Distribution (QKD) protocol designed to facilitate secure key exchange in large-scale quantum communication systems. The protocol leverages quantum entanglement and quantum measurement techniques to generate and distribute a secret key between multiple parties. A key limitation of existing QKD protocols is their restricted scalability. This proposed protocol addresses this issue through a carefully designed architecture and utilizes advanced quantum information processing concepts to enable the expansion of the system while maintaining its inherent security. The theoretical analysis demonstrates the protocol's feasibility and outlines key parameters for optimization. We focus on the core mechanisms and provide a detailed description of the protocol's operation, highlighting its potential for practical implementation in future quantum networks. The protocol's performance characteristics, including key rate and security level, are discussed.

DOI: 10.5281/zenodo.22635618

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