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Quantum-Inspired Algorithm for Distributed Constraint Satisfaction

Jincheng Zhang

Published Aug 28, 2026• 0 citations
Publisher

Abstract

This paper presents a novel distributed constraint satisfaction algorithm inspired by the principles of quantum mechanics, specifically superposition and interference. Traditional constraint satisfaction problems (CSPs) often face scalability challenges, particularly when dealing with large, distributed instances. Our algorithm, termed the Quantum-Inspired Distributed Constraint Solver (QIDCS), addresses this by employing a distributed network of nodes, each representing a potential solution. The core innovation lies in the "interference function," which dynamically weights potential solutions based on their compatibility with existing constraints, mimicking quantum interference. This weighting is iteratively refined through a distributed gradient descent process, allowing the algorithm to converge efficiently toward a valid solution. We demonstrate that this approach provides a fundamentally new paradigm for tackling distributed CSPs, offering potential improvements in performance and scalability compared to conventional methods. The algorithm's design avoids explicit quantum computation, relying instead on classical analogues to achieve similar effects. We provide a detailed explanation of the algorithm's components and the rationale behind their design. The primary focus is on the theoretical framework and the conceptual design of QIDCS, with the intention of future experimental validation.

DOI
10.5281/zenodo.22138266

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