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Adaptive Quantum Circuit Compilation with Reinforcement Learning

Jincheng Zhang

Published Sep 5, 2026• 0 citations
Publisher

Abstract

This paper presents a novel approach to quantum circuit compilation leveraging reinforcement learning (RL). The core idea is to train an RL agent to dynamically optimize quantum circuit structures, aiming to minimize gate count and enhance overall circuit performance. Traditional quantum circuit compilation methods often rely on static heuristics and pre-defined optimization strategies, which may not be optimal for all quantum algorithms or hardware platforms. Our approach addresses this limitation by allowing the RL agent to learn a policy that adapts to the specific characteristics of the algorithm and the target quantum hardware. The agent learns by interacting with a simulated quantum circuit environment, receiving rewards based on circuit fidelity, depth, and gate count. The results demonstrate the potential of RL to significantly improve the efficiency and robustness of quantum computations. The key components of the system are: a high-level quantum algorithm representation, an RL agent, a quantum circuit simulator, and a reward function. The agent's policy is represented as a neural network, enabling it to generalize across different algorithms and hardware. We demonstrate the effectiveness of this approach through simulations, showcasing its ability to outperform conventional compilation methods in terms of reducing circuit depth and gate count while maintaining high fidelity.

DOI
10.5281/zenodo.22317221

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This paper presents a novel approach to quantum circuit compilation leveraging reinforcement learning (RL). The core idea is to train an RL agent to dynamically optimize quantum circuit structures, aiming to minimize gate count and enhance overall circuit performance. Traditional quantum circuit compilation methods often rely on static heuristics and pre-defined optimization strategies, which may not be optimal for all quantum algorithms or hardware platforms. Our approach addresses this limitation by allowing the RL agent to learn a policy that adapts to the specific characteristics of the algorithm and the target quantum hardware. The agent learns by interacting with a simulated quantum circuit environment, receiving rewards based on circuit fidelity, depth, and gate count. The results demonstrate the potential of RL to significantly improve the efficiency and robustness of quantum computations. The key components of the system are: a high-level quantum algorithm representation, an RL agent, a quantum circuit simulator, and a reward function. The agent's policy is represented as a neural network, enabling it to generalize across different algorithms and hardware. We demonstrate the effectiveness of this approach through simulations, showcasing its ability to outperform conventional compilation methods in terms of reducing circuit depth and gate count while maintaining high fidelity.
Quantum circuit compilation is a crucial step in realizing quantum algorithms on real quantum hardware. Traditionally, compilation methods are largely static, relying on pre-defined mappings and optimizations that fail to account for the inherent noise and variability present in quantum devices. This paper proposes a novel approach leveraging Reinforcement Learning (RL) to dynamically generate and optimize quantum circuits. An RL agent is trained to learn a policy for circuit design, adapting to specific hardware characteristics and real-time measurement data. The agent's goal is to minimize the overall error rate of the compiled circuit. This dynamic compilation framework offers a feedback loop between hardware performance and circuit design, resulting in adaptive and robust quantum computation. The core claim of this work is that traditional static compilation methods are insufficient, and dynamic compilation driven by RL offers a superior solution. The approach presented here represents a significant advancement towards realizing the full potential of quantum computing by mitigating the effects of hardware imperfections. The framework includes a detailed description of the RL agent architecture, the reward function design, and the exploration strategy employed. The effectiveness of the proposed method is demonstrated through simulations, highlighting its ability to outperform static compilation strategies in noisy environments.
Quantum circuit compilation is a critical step in realizing quantum algorithms on near-term quantum hardware. The process of translating high-level quantum algorithms into low-level gate sequences, while minimizing gate count and circuit depth, is often performed using deterministic algorithms that struggle to adapt to the diverse and often imperfect characteristics of available quantum devices. This paper proposes a novel approach to quantum circuit compilation utilizing reinforcement learning (RL). An RL agent is trained to dynamically adapt to hardware constraints, such as qubit connectivity and gate decomposition costs, optimizing circuit fidelity and execution time. The core claim is that RL can significantly improve quantum circuit compilation by introducing a dynamic and adaptive compilation process. The agent learns a policy that maps high-level quantum algorithms to optimized low-level gate sequences, effectively bridging the gap between theoretical algorithms and practical hardware execution. This work demonstrates the potential of RL to overcome the limitations of traditional deterministic compilation methods and paves the way for more efficient and robust quantum algorithm implementation.
Quantum circuit compilation is a critical step in realizing quantum computation, aiming to translate high-level quantum algorithms into a sequence of gates executable on a specific quantum hardware. However, traditional compilation methods often struggle with the inherent complexities of quantum circuits, including their high dimensionality, susceptibility to noise, and the diverse characteristics of different quantum devices. This work proposes a novel approach to adaptive quantum circuit compilation that leverages the power of tensor networks (TNs) and reinforcement learning (RL). The core idea is to represent quantum circuits as TNs, dynamically adjusting the network's structure to capture the relevant circuit features while minimizing computational overhead and mitigating noise effects. A reinforcement learning agent is trained to iteratively construct and refine these TN representations, guided by feedback signals derived from circuit fidelity metrics and computational cost estimates. This dynamic adaptation allows for a more efficient and robust compilation process, potentially leading to improved performance and reduced error rates in quantum computations. The key contribution lies in the integration of TNs with RL for a self-optimizing compilation pipeline. This approach offers a promising direction for tackling the challenges inherent in quantum hardware limitations and diverse quantum device architectures.
Quantum circuit optimization remains a significant challenge in the development of practical quantum computing. Traditional methods often rely on heuristics or exhaustive searches, which are computationally expensive and may not effectively adapt to the specific characteristics of the quantum data being processed. This paper proposes a novel approach leveraging reinforcement learning (RL) to achieve contextualized quantum circuit optimization. The core idea is to train an RL agent to dynamically modify quantum circuits in real-time, guided by a reward function that balances circuit fidelity and execution time. Crucially, the agent incorporates a learned contextual representation of the input data, allowing it to tailor the circuit design to the specific context. We demonstrate the potential of this approach by outlining the key components, the reward function design, and the overall architecture. The potential benefits include improved circuit fidelity, reduced execution time, and the ability to adapt to diverse quantum datasets. This represents a shift from static circuit design to adaptive, context-aware optimization, potentially unlocking the full potential of quantum computation.
This paper proposes a portable quantum compilation optimization framework based on D3QN (Double Dueling Deep Q-Network) to automate quantum circuit tuning. Addressing challenges in adapting fixed strategies to diverse algorithms, the framework integrates reinforcement learning (RL) with a quantum compiler environment. The RL agent dynamically selects optimization passes, guided by a reward function balancing gate count, circuit depth, and hardware constraints. Quantum circuits are encoded as DAGs, with D3QN estimating Q-values and standardizing action-space encoding, state representation, and constraint validation. Experiments on the MQTBench dataset (430 circuits across 18 algorithms) show the framework outperforms QCOR-O3 and random strategies, achieving an average 8.7% gate reduction. Implemented on QCOR's MLIR-based compiler, the modular design ensures portability. Results validate generalization across algorithms, though performance varies for underrepresented circuits. This work establishes a standardized, RL-driven framework for quantum compilation optimization in NISQ systems.
Quantum circuit compilation is a critical step in realizing quantum algorithms on real quantum hardware. Traditional compilation methods often employ static optimization strategies, neglecting the unique constraints and characteristics of the target quantum device. This paper introduces a novel adaptive quantum circuit compilation framework designed to dynamically adjust circuit designs based on hardware-specific information, aiming to minimize gate count and, consequently, error rates. The core of the framework lies in integrating a hardware simulator directly within the compilation process. This allows the compiler to evaluate the performance of various circuit designs—considering factors like qubit connectivity, gate fidelity, and decoherence models—before committing to a final layout. The proposed approach represents a shift from static to adaptive optimization, providing a more nuanced and effective strategy for translating quantum algorithms into executable code on diverse quantum hardware platforms. This research demonstrates a significant potential improvement in quantum circuit efficiency and fidelity, addressing a key bottleneck in the advancement of quantum computing.