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Title: DeePCG: Constructing coarse-grained models via deep neural networks

Journal Article · · Journal of Chemical Physics
DOI:https://doi.org/10.1063/1.5027645· OSTI ID:1512932
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2];  [1];  [3]
  1. Princeton Univ., NJ (United States)
  2. Inst. of Applied Physics and Computational Mathematics (IAPCM), Beijing (China); CAEP Software CEnter for High Performance Numerical Simulation, Beijing (China)
  3. Princeton Univ., NJ (United States); Beijing Inst. of Big Data Research (China)

We introduce a general framework for constructing coarse-grained potential models without ad hoc approximations such as limiting the potential to two- and/or three-body contributions. The scheme, called the Deep Coarse-Grained Potential (abbreviated DeePCG), exploits a carefully crafted neural network to construct a many-body coarse-grained potential. The network is trained with full atomistic data in a way that preserves the natural symmetries of the system. The resulting model is very accurate and can be used to sample the configurations of the coarse-grained variables in a much faster way than with the original atomistic model. As an application, we consider liquid water and use the oxygen coordinates as the coarse-grained variables, starting from a full atomistic simulation of this system at the ab initio molecular dynamics level. We find that the two-body, three-body, and higher-order oxygen correlation functions produced by the coarse-grained and full atomistic models agree very well with each other, illustrating the effectiveness of the DeePCG model on a rather challenging task

Research Organization:
Princeton Univ., NJ (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0008626; SC0009248
OSTI ID:
1512932
Alternate ID(s):
OSTI ID: 1460500
Journal Information:
Journal of Chemical Physics, Vol. 149, Issue 3; ISSN 0021-9606
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 109 works
Citation information provided by
Web of Science

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Cited By (13)

Toward High Fidelity Materials Property Prediction from Multiscale Modeling and Simulation journal October 2019
Coarse-graining auto-encoders for molecular dynamics journal December 2019
Adversarial-residual-coarse-graining: Applying machine learning theory to systematic molecular coarse-graining journal September 2019
A coarse-grained deep neural network model for liquid water journal November 2019
Isotope effects in liquid water via deep potential molecular dynamics journal October 2019
From DFT to machine learning: recent approaches to materials science–a review journal May 2019
A deep learning approach to the structural analysis of proteins journal April 2019
Molecular Modeling Investigations of Sorption and Diffusion of Small Molecules in Glassy Polymers journal August 2019
Active Learning of Uniformly Accurate Inter-atomic Potentials for Materials Simulation text January 2018
A deep learning approach to the structural analysis of proteins preprint January 2019
Isotope Effects in Liquid Water via Deep Potential Molecular Dynamics text January 2019
A coarse-grained deep neural network model for liquid water text January 2019
86 PFLOPS Deep Potential Molecular Dynamics simulation of 100 million atoms with ab initio accuracy journal February 2021

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