Frontiers of Data and Computing ›› 2023, Vol. 5 ›› Issue (4): 27-37.

CSTR: 32002.14.jfdc.CN10-1649/TP.2023.04.003

doi: 10.11871/jfdc.issn.2096-742X.2023.04.003

• Special Issue: Basic Research • Previous Articles     Next Articles

A Review of Force Field Models Based on Machine Learning

CHEN Meilin1,2(),LIU Duanyang3,XU Liming1,2,WANG Yang1,*()   

  1. 1. Computer Network Information Center, Chinese Academy of Sciences, Beijing 100083, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China
    3. Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
  • Received:2023-06-01 Online:2023-08-20 Published:2023-08-23

Abstract:

[Background] In the past few decades, due to complexity of the atomic structure and the computation for investigating the structure, traditional force field methods have been struggling in solving certain problems. [Objective] The introduction of machine learning methods is expected to solve many previously intractable problems and balance the constraints between computational efficiency and accuracy. [Methods] Machine learning force fields methods do not rely on preconceived knowledge and model the force field by learning from small-scale high-precision molecular dynamics simulation data. At the same time, approximate assumptions are made for the motion of atomic nuclei and extranuclear electrons, greatly simplifying the generation process of the force field. [Results] Machine learning force fields methods aim to achieve almost the same accuracy as traditional force fields methods while significantly improving computational efficiency. This article provides an overview of the development and related theoretical knowledge of the machine learning force fields methods, introduces several common methods, and finally explores the shortcomings of machine learning force fields methods and the challenges that need to be tackled in the future.

Key words: machine learning in semiconductor field, machine learning force field, sGDML, neural network