Reinforcement Learning for Optimizing Large Qubit Array based Quantum Sensor Circuits

Fuente: arXiv
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Autori principali: Attisara, Laxmisha Ashok, Kumar, Sathish
Natura: Preprint
Pubblicazione: 2025
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author Attisara, Laxmisha Ashok
Kumar, Sathish
author_facet Attisara, Laxmisha Ashok
Kumar, Sathish
contents As the number of qubits in a sensor increases, the complexity of designing and controlling the quantum circuits grows exponentially. Manually optimizing these circuits becomes infeasible. Optimizing entanglement distribution in large-scale quantum circuits is critical for enhancing the sensitivity and efficiency of quantum sensors [5], [6]. This paper presents an engineering integration of reinforcement learning with tensor-network-based simulation (MPS) for scalable circuit optimization for optimizing quantum sensor circuits with up to 60 qubits. To enable efficient simulation and scalability, we adopt tensor network methods, specifically the Matrix Product State (MPS) representation, instead of traditional state vector or density matrix approaches. Our reinforcement learning agent learns to restructure circuits to maximize Quantum Fisher Information (QFI) and entanglement entropy while reducing gate counts and circuit depth. Experimental results show consistent improvements, with QFI values approaching 1, entanglement entropy in the 0.8-1.0 range, and up to 90% reduction in depth and gate count. These results highlight the potential of combining quantum machine learning and tensor networks to optimize complex quantum circuits under realistic constraints.
format Preprint
id arxiv_https___arxiv_org_abs_2508_21253
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Reinforcement Learning for Optimizing Large Qubit Array based Quantum Sensor Circuits
Attisara, Laxmisha Ashok
Kumar, Sathish
Quantum Physics
Artificial Intelligence
81P45, 68T07
As the number of qubits in a sensor increases, the complexity of designing and controlling the quantum circuits grows exponentially. Manually optimizing these circuits becomes infeasible. Optimizing entanglement distribution in large-scale quantum circuits is critical for enhancing the sensitivity and efficiency of quantum sensors [5], [6]. This paper presents an engineering integration of reinforcement learning with tensor-network-based simulation (MPS) for scalable circuit optimization for optimizing quantum sensor circuits with up to 60 qubits. To enable efficient simulation and scalability, we adopt tensor network methods, specifically the Matrix Product State (MPS) representation, instead of traditional state vector or density matrix approaches. Our reinforcement learning agent learns to restructure circuits to maximize Quantum Fisher Information (QFI) and entanglement entropy while reducing gate counts and circuit depth. Experimental results show consistent improvements, with QFI values approaching 1, entanglement entropy in the 0.8-1.0 range, and up to 90% reduction in depth and gate count. These results highlight the potential of combining quantum machine learning and tensor networks to optimize complex quantum circuits under realistic constraints.
title Reinforcement Learning for Optimizing Large Qubit Array based Quantum Sensor Circuits
topic Quantum Physics
Artificial Intelligence
81P45, 68T07
url https://arxiv.org/abs/2508.21253