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Quantum-Inspired Bayesian Inference

Jincheng Zhang

Published Aug 29, 2026• 0 citations
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Abstract

This paper proposes a novel Bayesian inference algorithm termed "Quantum-Inspired Bayesian Inference" (QIBI), drawing inspiration from quantum mechanics, particularly superposition and entanglement. Classical Bayesian inference struggles with representing and processing highly complex and uncertain data, often relying on a single, definitive probability distribution. QIBI addresses this limitation by introducing a mechanism analogous to quantum superposition, allowing the algorithm to simultaneously consider multiple hypotheses, each weighted by its "quantum coherence." Quantum coherence represents the degree to which a hypothesis consistently explores the solution space. The algorithm's core equation is: P(Hi | D) = (1/Z) * [Ψ*(D) * P(Hi)] Where: * P(Hi | D) is the posterior probability of hypothesis *Hi* given data *D*. * Ψ(D) is the quantum coherence vector representing the superposition state. * P(Hi) is the prior probability of hypothesis *Hi*. * Z is the normalization constant. The implementation of QIBI offers potential advantages over traditional Bayesian methods, particularly in scenarios with high dimensionality, complex dependencies, and significant uncertainty. This work outlines the theoretical framework, the core equation, and the rationale behind QIBI's approach, suggesting a pathway towards more robust and efficient Bayesian inference by leveraging principles from the quantum world. The algorithm's performance is theoretically assessed, and future research directions are discussed, focusing on practical implementation and comparative analysis with established Bayesian techniques.

DOI
10.5281/zenodo.22156191

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