Article Dans Une Revue Digital Discovery Année : 2025

ULaMDyn: enhancing excited-state dynamics analysis through streamlined unsupervised learning

Résumé

The analysis of nonadiabatic molecular dynamics (NAMD) data presents significant challenges due to its high dimensionality and complexity. To address these issues, we introduce ULaMDyn, a Python-based, open-source package designed to automate the unsupervised analysis of large datasets generated by NAMD simulations. ULaMDyn integrates seamlessly with the Newton-X platform and employs advanced dimensionality reduction and clustering techniques to uncover hidden patterns in molecular trajectories, enabling a more intuitive understanding of excited-state processes. Using the photochemical dynamics of fulvene as a test case, we demonstrate how ULaMDyn efficiently identifies critical molecular geometries and critical nonadiabatic transitions. The package offers a streamlined, scalable solution for interpreting large NAMD datasets. It is poised to facilitate advances in the study of excited-state dynamics across a wide range of molecular systems.
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hal-04918182 , version 1 (29-01-2025)

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Max Pinheiro, Matheus de Oliveira Bispo, Rafael S Mattos, Mariana Telles Do Casal, Josene M Toldo, et al.. ULaMDyn: enhancing excited-state dynamics analysis through streamlined unsupervised learning. Digital Discovery, 2025, ⟨10.1039/d4dd00374h⟩. ⟨hal-04918182⟩
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