Predicting Dynamic Heterogeneity in Glass-Forming Liquids by Physics-Inspired Machine Learning

Gerhard Jung, Giulio Biroli, and Ludovic Berthier
Phys. Rev. Lett. 130, 238202 – Published 9 June 2023
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Abstract

We introduce GlassMLP, a machine learning framework using physics-inspired structural input to predict the long-time dynamics in deeply supercooled liquids. We apply this deep neural network to atomistic models in 2D and 3D. Its performance is better than the state of the art while being more parsimonious in terms of training data and fitting parameters. GlassMLP quantitatively predicts four-point dynamic correlations and the geometry of dynamic heterogeneity. Transferability across system sizes allows us to efficiently probe the temperature evolution of spatial dynamic correlations, revealing a profound change with temperature in the geometry of rearranging regions.

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  • Received 3 November 2022
  • Revised 7 March 2023
  • Accepted 17 May 2023

DOI:https://doi.org/10.1103/PhysRevLett.130.238202

© 2023 American Physical Society

Physics Subject Headings (PhySH)

Polymers & Soft Matter

Authors & Affiliations

Gerhard Jung1, Giulio Biroli2, and Ludovic Berthier1,3

  • 1Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, 34095 Montpellier, France
  • 2Laboratoire de Physique de l’Ecole Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université de Paris, F-75005 Paris, France
  • 3Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom

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Issue

Vol. 130, Iss. 23 — 9 June 2023

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