Quantum Bayesian Inference with Decoherence Mitigation

Jincheng Zhang

Published Aug 31, 2026• 0 citations

Abstract

This paper explores a novel approach to Bayesian inference within quantum systems, specifically addressing the significant challenge posed by decoherence. Traditional Bayesian inference relies on maintaining quantum coherence, which is highly susceptible to environmental noise. We introduce a framework where decoherence is actively mitigated through dynamically controlled environmental interactions. The core concept involves utilizing precisely engineered external fields, coupled with real-time feedback loops, to counteract decoherence effects during the inference process. Unlike passive isolation or conventional error correction strategies, our method offers an active, responsive solution that maintains coherence for extended periods. We detail the theoretical underpinnings of this approach, focusing on the mathematical formulation of the inference process, incorporating decoherence models and the control strategies employed. The proposed system leverages quantum measurement to update Bayesian probabilities, with the control parameters designed to minimize the impact of decoherence on the measurement outcomes. This work lays the groundwork for performing accurate Bayesian inference on quantum systems, potentially unlocking new possibilities in quantum computing and information processing. The key mathematical concepts employed include the Schrödinger equation, density matrix formalism, and Bayesian probability theory. The system is designed to achieve a target accuracy in the Bayesian inference, even in the presence of significant decoherence.

DOI: 10.5281/zenodo.22195747

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