Quantum Architecture Search for Solving Quantum Machine Learning Tasks

Fuente: arXiv
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Main Authors: Kölle, Michael, Salfer, Simon, Rohe, Tobias, Altmann, Philipp, Linnhoff-Popien, Claudia
Format: Preprint
Published: 2025
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_version_ 1866915494130352128
author Kölle, Michael
Salfer, Simon
Rohe, Tobias
Altmann, Philipp
Linnhoff-Popien, Claudia
author_facet Kölle, Michael
Salfer, Simon
Rohe, Tobias
Altmann, Philipp
Linnhoff-Popien, Claudia
contents Quantum computing leverages quantum mechanics to address computational problems in ways that differ fundamentally from classical approaches. While current quantum hardware remains error-prone and limited in scale, Variational Quantum Circuits offer a noise-resilient framework suitable for today's devices. The performance of these circuits strongly depends on the underlying architecture of their parameterized quantum components. Identifying efficient, hardware-compatible quantum circuit architectures -- known as Quantum Architecture Search (QAS) -- is therefore essential. Manual QAS is complex and error-prone, motivating efforts to automate it. Among various automated strategies, Reinforcement Learning (RL) remains underexplored, particularly in Quantum Machine Learning contexts. This work introduces RL-QAS, a framework that applies RL to discover effective circuit architectures for classification tasks. We evaluate RL-QAS using the Iris and binary MNIST datasets. The agent autonomously discovers low-complexity circuit designs that achieve high test accuracy. Our results show that RL is a viable approach for automated architecture search in quantum machine learning. However, applying RL-QAS to more complex tasks will require further refinement of the search strategy and performance evaluation mechanisms.
format Preprint
id arxiv_https___arxiv_org_abs_2509_11198
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Quantum Architecture Search for Solving Quantum Machine Learning Tasks
Kölle, Michael
Salfer, Simon
Rohe, Tobias
Altmann, Philipp
Linnhoff-Popien, Claudia
Quantum Physics
Artificial Intelligence
Machine Learning
Quantum computing leverages quantum mechanics to address computational problems in ways that differ fundamentally from classical approaches. While current quantum hardware remains error-prone and limited in scale, Variational Quantum Circuits offer a noise-resilient framework suitable for today's devices. The performance of these circuits strongly depends on the underlying architecture of their parameterized quantum components. Identifying efficient, hardware-compatible quantum circuit architectures -- known as Quantum Architecture Search (QAS) -- is therefore essential. Manual QAS is complex and error-prone, motivating efforts to automate it. Among various automated strategies, Reinforcement Learning (RL) remains underexplored, particularly in Quantum Machine Learning contexts. This work introduces RL-QAS, a framework that applies RL to discover effective circuit architectures for classification tasks. We evaluate RL-QAS using the Iris and binary MNIST datasets. The agent autonomously discovers low-complexity circuit designs that achieve high test accuracy. Our results show that RL is a viable approach for automated architecture search in quantum machine learning. However, applying RL-QAS to more complex tasks will require further refinement of the search strategy and performance evaluation mechanisms.
title Quantum Architecture Search for Solving Quantum Machine Learning Tasks
topic Quantum Physics
Artificial Intelligence
Machine Learning
url https://arxiv.org/abs/2509.11198