Quantum Decoherence-Based Cryptanalysis Method

Jincheng Zhang

Published Sep 2, 2026• 0 citations

Abstract

This paper introduces a novel cryptanalysis method leveraging the principles of quantum decoherence. The core idea centers on exploiting the controllable nature of decoherence times within quantum bits (qubits) to identify vulnerabilities in quantum key distribution (QKD) protocols. Specifically, we propose a method for pinpointing critical operations that induce decoherence, ultimately leading to key leakage and, potentially, the breaking of the underlying encryption algorithms. The approach distinguishes itself from existing QKD attacks by directly targeting the decoherence process itself, offering a new direction for cryptanalysis in the quantum realm. The presented framework provides a theoretical foundation and outlines a strategy for developing more effective attacks against QKD systems.

DOI: 10.5281/zenodo.22243117

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