Elasticity, Facilitation and Dynamic Heterogeneity in Glass-Forming liquids

Misaki Ozawa; Giulio Biroli

doi:10.1103/physrevlett.130.138201

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arXiv · 2209.08861

Elasticity, Facilitation and Dynamic Heterogeneity in Glass-Forming liquids

Misaki Ozawa·Giulio Biroli

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Abstract

We study the role of elasticity-induced facilitation on the dynamics of glass-forming liquids by a coarse-grained two-dimensional model in which local relaxation events, taking place by thermal activation, can trigger new relaxations by long-range elastically-mediated interactions. By simulations and an analytical theory, we show that the model reproduces the main salient facts associated with dynamic heterogeneity and offers a mechanism to explain the emergence of dynamical correlations at the glass transition. We also discuss how it can be generalized and combined with current theories.

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Misaki Ozawa, Giulio Biroli. 2022-09-19. Elasticity, Facilitation and Dynamic Heterogeneity in Glass-Forming liquids. https://doi.org/10.1103/physrevlett.130.138201

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