Many-body potential energy functions (MB-PEFs), which integrate data-driven representations of many-body short-range quantum mechanical interactions with physics-based representations of many-body polarization and long-range interactions, have recently been shown to provide high accuracy in the description of molecular interactions from the gas to the condensed phase. Here, we present MB-Fit, a software infrastructure for the automated development of MB-PEFs for generic molecules within the TTM-nrg (Thole-type model energy) and MB-nrg (many-body energy) theoretical frameworks. Besides providing all the necessary computational tools for generating TTM-nrg and MB-nrg PEFs, MB-Fit provides a seamless interface with the MBX software, a many-body energy and force calculator for computer simulations. Given the demonstrated accuracy of the MB-PEFs, particularly within the MB-nrg framework, we believe that MB-Fit will enable routine predictive computer simulations of generic (small) molecules in the gas, liquid, and solid phases, including, but not limited to, the modeling of quantum isomeric equilibria in molecular clusters, solvation processes, molecular crystals, and phase diagrams.
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28 September 2021
Research Article|
September 23 2021
MB-Fit: Software infrastructure for data-driven many-body potential energy functions
Ethan F. Bull-Vulpe
;
Ethan F. Bull-Vulpe
a)
1
Department of Chemistry and Biochemistry, University of California San Diego
, La Jolla, California 92093, USA
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Marc Riera
;
Marc Riera
b)
1
Department of Chemistry and Biochemistry, University of California San Diego
, La Jolla, California 92093, USA
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Andreas W. Götz
;
Andreas W. Götz
c)
2
San Diego Supercomputer Center, University of California San Diego
, La Jolla, California 92093, USA
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Francesco Paesani
Francesco Paesani
d)
1
Department of Chemistry and Biochemistry, University of California San Diego
, La Jolla, California 92093, USA
2
San Diego Supercomputer Center, University of California San Diego
, La Jolla, California 92093, USA
3
Materials Science and Engineering, University of California San Diego
, La Jolla, California 92093, USA
d)Author to whom correspondence should be addressed: [email protected]
Search for other works by this author on:
Ethan F. Bull-Vulpe
1,a)
Marc Riera
1,b)
Andreas W. Götz
2,c)
Francesco Paesani
1,2,3,d)
1
Department of Chemistry and Biochemistry, University of California San Diego
, La Jolla, California 92093, USA
2
San Diego Supercomputer Center, University of California San Diego
, La Jolla, California 92093, USA
3
Materials Science and Engineering, University of California San Diego
, La Jolla, California 92093, USA
d)Author to whom correspondence should be addressed: [email protected]
a)
Electronic mail: [email protected]
b)
Electronic mail: [email protected]
c)
Electronic mail: [email protected]
J. Chem. Phys. 155, 124801 (2021)
Article history
Received:
July 12 2021
Accepted:
September 01 2021
Citation
Ethan F. Bull-Vulpe, Marc Riera, Andreas W. Götz, Francesco Paesani; MB-Fit: Software infrastructure for data-driven many-body potential energy functions. J. Chem. Phys. 28 September 2021; 155 (12): 124801. https://doi.org/10.1063/5.0063198
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