Noise-Resilient Quantum Reinforcement Learning

• URL: http://arxiv.org/abs/2508.20601v1
• Date: Thu, 28 Aug 2025 09:45:31 GMT
• Title: Noise-Resilient Quantum Reinforcement Learning
• Authors: Jing-Ci Yue, Jun-Hong An,
• Abstract summary: We propose a noise-resilient QRL scheme for a quantum eigensolver.<n>We find that the formation of a bound state in the energy spectrum of the total agent-noise system restores the QRL performance to that in the noiseless case.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: As a branch of quantum machine learning, quantum reinforcement learning (QRL) aims to solve complex sequential decision-making problems more efficiently and effectively than its classical counterpart by exploiting quantum resources. However, in the noisy intermediate-scale quantum (NISQ) era, its realization is challenged by the ubiquitous noise-induced decoherence. Here, we propose a noise-resilient QRL scheme for a quantum eigensolver. By investigating the non-Markovian decoherence effect on the QRL for solving the eigen states of a two-level system as an agent, we find that the formation of a bound state in the energy spectrum of the total agent-noise system restores the QRL performance to that in the noiseless case. Providing a universal physical mechanism to suppress the decoherence effect in quantum machine learning, our result lays the foundation for designing the NISQ algorithms and offers a guideline for their practical implementation.

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