Symmetry-invariant quantum machine learning force fields

Machine learning techniques are essential tools to compute efficient, yet accurate, force fields for atomistic simulations. This approach has recently been extended to incorporate quantum computational methods, making use of variational quantum learning models to predict potential energy surfaces an...

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Main Authors: Isabel Nha Minh Le, Oriel Kiss, Julian Schuhmacher, Ivano Tavernelli, Francesco Tacchino
Format: Article
Language:English
Published: IOP Publishing 2025-01-01
Series:New Journal of Physics
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/adad0c
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author Isabel Nha Minh Le
Oriel Kiss
Julian Schuhmacher
Ivano Tavernelli
Francesco Tacchino
author_facet Isabel Nha Minh Le
Oriel Kiss
Julian Schuhmacher
Ivano Tavernelli
Francesco Tacchino
author_sort Isabel Nha Minh Le
collection DOAJ
description Machine learning techniques are essential tools to compute efficient, yet accurate, force fields for atomistic simulations. This approach has recently been extended to incorporate quantum computational methods, making use of variational quantum learning models to predict potential energy surfaces and atomic forces from ab initio training data. However, the trainability and scalability of such models are still limited, due to both theoretical and practical barriers. Inspired by recent developments in geometric classical and quantum machine learning, here we design quantum neural networks that explicitly incorporate, as a data-inspired prior, an extensive set of physically relevant symmetries. We find that our invariant quantum learning models outperform their more generic counterparts on individual molecules of growing complexity. Furthermore, we study a water dimer as a minimal example of a system with multiple components, showcasing the versatility of our proposed approach and opening the way towards larger simulations. Finally, we perform a barren plateau analysis and numerically observe that our model does not exhibit a barren plateau in the shallow depth regime. Our results suggest that molecular force fields generation can significantly profit from leveraging the framework of geometric quantum machine learning, and that chemical systems represent, in fact, an interesting and rich playground for the development and application of advanced quantum machine learning tools.
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spelling doaj-art-56fd336986464c53a6c69cea483a1a8e2025-02-11T11:38:36ZengIOP PublishingNew Journal of Physics1367-26302025-01-0127202301510.1088/1367-2630/adad0cSymmetry-invariant quantum machine learning force fieldsIsabel Nha Minh Le0https://orcid.org/0000-0001-6707-044XOriel Kiss1https://orcid.org/0000-0001-7461-3342Julian Schuhmacher2https://orcid.org/0000-0002-7011-6477Ivano Tavernelli3https://orcid.org/0000-0001-5690-1981Francesco Tacchino4https://orcid.org/0000-0003-2008-5956IBM Quantum , IBM Research Europe—Zurich, 8803 Rueschlikon, Switzerland; Institute for Quantum Information , RWTH Aachen University, 52074 Aachen, Germany; Department of Computer Science, Technical University of Munich , School of Computation, Information and Technology, 85748 Garching, GermanyEuropean Organization for Nuclear Research (CERN) , 1211 Geneva, Switzerland; Department of Nuclear and Particle Physics, University of Geneva , 1211 Geneva, SwitzerlandIBM Quantum , IBM Research Europe—Zurich, 8803 Rueschlikon, SwitzerlandIBM Quantum , IBM Research Europe—Zurich, 8803 Rueschlikon, SwitzerlandIBM Quantum , IBM Research Europe—Zurich, 8803 Rueschlikon, SwitzerlandMachine learning techniques are essential tools to compute efficient, yet accurate, force fields for atomistic simulations. This approach has recently been extended to incorporate quantum computational methods, making use of variational quantum learning models to predict potential energy surfaces and atomic forces from ab initio training data. However, the trainability and scalability of such models are still limited, due to both theoretical and practical barriers. Inspired by recent developments in geometric classical and quantum machine learning, here we design quantum neural networks that explicitly incorporate, as a data-inspired prior, an extensive set of physically relevant symmetries. We find that our invariant quantum learning models outperform their more generic counterparts on individual molecules of growing complexity. Furthermore, we study a water dimer as a minimal example of a system with multiple components, showcasing the versatility of our proposed approach and opening the way towards larger simulations. Finally, we perform a barren plateau analysis and numerically observe that our model does not exhibit a barren plateau in the shallow depth regime. Our results suggest that molecular force fields generation can significantly profit from leveraging the framework of geometric quantum machine learning, and that chemical systems represent, in fact, an interesting and rich playground for the development and application of advanced quantum machine learning tools.https://doi.org/10.1088/1367-2630/adad0cmolecular force fieldsgeometric quantum machine learningequivariant quantum neural networks
spellingShingle Isabel Nha Minh Le
Oriel Kiss
Julian Schuhmacher
Ivano Tavernelli
Francesco Tacchino
Symmetry-invariant quantum machine learning force fields
New Journal of Physics
molecular force fields
geometric quantum machine learning
equivariant quantum neural networks
title Symmetry-invariant quantum machine learning force fields
title_full Symmetry-invariant quantum machine learning force fields
title_fullStr Symmetry-invariant quantum machine learning force fields
title_full_unstemmed Symmetry-invariant quantum machine learning force fields
title_short Symmetry-invariant quantum machine learning force fields
title_sort symmetry invariant quantum machine learning force fields
topic molecular force fields
geometric quantum machine learning
equivariant quantum neural networks
url https://doi.org/10.1088/1367-2630/adad0c
work_keys_str_mv AT isabelnhaminhle symmetryinvariantquantummachinelearningforcefields
AT orielkiss symmetryinvariantquantummachinelearningforcefields
AT julianschuhmacher symmetryinvariantquantummachinelearningforcefields
AT ivanotavernelli symmetryinvariantquantummachinelearningforcefields
AT francescotacchino symmetryinvariantquantummachinelearningforcefields