Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 150, Issue 6, Pages -Publisher
AIP Publishing
DOI: 10.1063/1.5053562
Keywords
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Funding
- Air Force Office of Scientific Research, Air Force Material Command, USAF [FA9550-15-1-0026]
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The role of response operators is well established in quantum mechanics. We investigate their use for universal quantum machine learning models of response properties in molecules. After introducing a theoretical basis, we present and discuss numerical evidence based on measuring the potential energy's response with respect to atomic displacement and to electric fields. Prediction errors for corresponding properties, atomic forces, and dipole moments improve in a systematic fashion with training set size and reach high accuracy for small training sets. Prediction of normal modes and infrared-spectra of some small molecules demonstrates the usefulness of this approach for chemistry. (c) 2019 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). https://doi.org/10.1063/1.5053562
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