BenchRL-QAS: Benchmarking reinforcement learning algorithms for quantum architecture search

Fuente: arXiv
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Main Authors: Ikhtiarudin, Azhar, Das, Aditi, Thakkar, Param, Kundu, Akash
Format: Preprint
Published: 2025
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author Ikhtiarudin, Azhar
Das, Aditi
Thakkar, Param
Kundu, Akash
author_facet Ikhtiarudin, Azhar
Das, Aditi
Thakkar, Param
Kundu, Akash
contents We present BenchRL-QAS, a unified benchmarking framework for reinforcement learning (RL) in quantum architecture search (QAS) across a spectrum of variational quantum algorithm tasks on 2- to 8-qubit systems. Our study systematically evaluates 9 different RL agents, including both value-based and policy-gradient methods, on quantum problems such as variational eigensolver, quantum state diagonalization, variational quantum classification (VQC), and state preparation, under both noiseless and noisy execution settings. To ensure fair comparison, we propose a weighted ranking metric that integrates accuracy, circuit depth, gate count, and training time. Results demonstrate that no single RL method dominates universally, the performance dependents on task type, qubit count, and noise conditions providing strong evidence of no free lunch principle in RL-QAS. As a byproduct we observe that a carefully chosen RL algorithm in RL-based VQC outperforms baseline VQCs. BenchRL-QAS establishes the most extensive benchmark for RL-based QAS to date, codes and experimental made publicly available for reproducibility and future advances.
format Preprint
id arxiv_https___arxiv_org_abs_2507_12189
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle BenchRL-QAS: Benchmarking reinforcement learning algorithms for quantum architecture search
Ikhtiarudin, Azhar
Das, Aditi
Thakkar, Param
Kundu, Akash
Quantum Physics
Artificial Intelligence
Machine Learning
Performance
We present BenchRL-QAS, a unified benchmarking framework for reinforcement learning (RL) in quantum architecture search (QAS) across a spectrum of variational quantum algorithm tasks on 2- to 8-qubit systems. Our study systematically evaluates 9 different RL agents, including both value-based and policy-gradient methods, on quantum problems such as variational eigensolver, quantum state diagonalization, variational quantum classification (VQC), and state preparation, under both noiseless and noisy execution settings. To ensure fair comparison, we propose a weighted ranking metric that integrates accuracy, circuit depth, gate count, and training time. Results demonstrate that no single RL method dominates universally, the performance dependents on task type, qubit count, and noise conditions providing strong evidence of no free lunch principle in RL-QAS. As a byproduct we observe that a carefully chosen RL algorithm in RL-based VQC outperforms baseline VQCs. BenchRL-QAS establishes the most extensive benchmark for RL-based QAS to date, codes and experimental made publicly available for reproducibility and future advances.
title BenchRL-QAS: Benchmarking reinforcement learning algorithms for quantum architecture search
topic Quantum Physics
Artificial Intelligence
Machine Learning
Performance
url https://arxiv.org/abs/2507.12189