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q-pac: A Python package for machine learned charge equilibration models

delete2023-08-02
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OA
AI
M
Martin Vondrák
K
Karsten Reuter
J
Johannes T. Margraf *
DOI:10.1063/5.0156290delete
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Abstract

Abstract

En 中文
Many state-of-the art machine learning (ML) interatomic potentials are based on a local or semi-local (message-passing) representation of chemical environments. They, therefore, lack a description of long-range electrostatic interactions and non-local charge transfer. In this context, there has been much interest in developing ML-based charge equilibration models, which allow the rigorous calculation of long-range electrostatic interactions and the energetic response of molecules and materials to external fields. The recently reported kQEq method achieves this by predicting local atomic electronegativities using Kernel ML. This paper describes the q-pac Python package, which implements several algorithmic and methodological advances to kQEq and provides an extendable framework for the development of ML charge equilibration models.
Keywords:
SIMULATION

Journal

Journal of Chemical Physics cover
Journal of Chemical Physics
IF:
3.1
Papers:
7.2W
Citations:
23.2W

Organization

M
Max Planck Society
Scholars:
8.2W
Papers: 7.7W
Citations: 3.3W