Academic Journal
Symmetry-invariant quantum machine learning force fields
| Title: | Symmetry-invariant quantum machine learning force fields |
|---|---|
| Authors: | Isabel Nha Minh Le, Oriel Kiss, Julian Schuhmacher, Ivano Tavernelli, Francesco Tacchino |
| Source: | New Journal of Physics, Vol 27, Iss 2, p 023015 (2025) |
| Publisher Information: | IOP Publishing, 2025. |
| Publication Year: | 2025 |
| Collection: | LCC:Science LCC:Physics |
| Subject Terms: | molecular force fields, geometric quantum machine learning, equivariant quantum neural networks, Science, Physics, QC1-999 |
| More Details: | 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. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 1367-2630 |
| Relation: | https://doaj.org/toc/1367-2630 |
| DOI: | 10.1088/1367-2630/adad0c |
| Access URL: | https://doaj.org/article/56fd336986464c53a6c69cea483a1a8e |
| Accession Number: | edsdoj.56fd336986464c53a6c69cea483a1a8e |
| Database: | Directory of Open Access Journals |
| ISSN: | 13672630 |
|---|---|
| DOI: | 10.1088/1367-2630/adad0c |
| Published in: | New Journal of Physics |
| Language: | English |