Enhanced Security of Quantum Key Distribution Protocols Based on Quantum Phase Decoherence

Jincheng Zhang

Published Sep 2, 2026• 0 citations

Abstract

This paper proposes a novel approach to enhancing the security of Quantum Key Distribution (QKD) protocols by dynamically adjusting the estimation of quantum phase decoherence probability. Traditional QKD protocols often rely on static parameters, which limit their resilience against adaptive eavesdropping attacks. Our method leverages the real-time detection and mitigation of these attacks through the dynamic adjustment of decoherence probability estimation. Specifically, we introduce a feedback mechanism that monitors the estimated decoherence probability and adjusts key distribution parameters accordingly. This adaptive strategy provides a more robust defense against sophisticated attacks, ultimately improving the overall security of the QKD system. The core claim of this work is that dynamic adjustment of decoherence probability estimation can significantly bolster QKD security. The core mechanism relies on real-time attack detection and parameter adaptation. This approach represents a departure from the static parameter reliance of existing protocols, offering a proactive defense strategy.

DOI: 10.5281/zenodo.22245332

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