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Quantum Key Distribution Protocol Based on Quantum Coherence Degradation

Jincheng Zhang

Published Sep 3, 2026• 0 citations
Publisher

Abstract

This paper presents a novel quantum key distribution (QKD) protocol leveraging the principles of quantum coherence degradation, specifically quantum decoherence. The protocol aims to enhance key security by exploiting the inherent sensitivity of quantum states to environmental interactions. We detail a protocol where Alice and Bob employ polarized photons and measurement bases to establish a shared key. The core innovation lies in the strategic introduction of decoherence into the communication channel, effectively masking eavesdropping attempts. Mathematical analysis demonstrates the protocol's security under specific assumptions about the decoherence model. This work contributes to the ongoing research in QKD, proposing a pathway towards more resilient key distribution systems. The key parameters affecting the protocol's performance, including decoherence rates and measurement precision, are thoroughly examined. The overall goal is to provide a robust foundation for secure quantum communication.

DOI
10.5281/zenodo.22269342

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