Nonadiabatic Excited-State Dynamics with Machine Learning.

J Phys Chem Lett

Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm-Platz 1 , 45470 Mülheim an der Ruhr , Germany.

Published: October 2018

We show that machine learning (ML) can be used to accurately reproduce nonadiabatic excited-state dynamics with decoherence-corrected fewest switches surface hopping in a 1-D model system. We propose to use ML to significantly reduce the simulation time of realistic, high-dimensional systems with good reproduction of observables obtained from reference simulations. Our approach is based on creating approximate ML potentials for each adiabatic state using a small number of training points. We investigate the feasibility of this approach by using adiabatic spin-boson Hamiltonian models of various dimensions as reference methods.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6174422PMC
http://dx.doi.org/10.1021/acs.jpclett.8b02469DOI Listing

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