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Elasticity, Facilitation and Dynamic Heterogeneity in Glass-Forming liquids (2209.08861v1)
Published 19 Sep 2022 in cond-mat.dis-nn, cond-mat.soft, and cond-mat.stat-mech
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.