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.

中文翻译：

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玻璃成型液体的弹性、促进和动态异质性

我们通过粗粒度二维模型研究弹性诱导促进对玻璃形成液体动力学的作用，其中通过热激活发生的局部弛豫事件可以通过长程弹性介导的相互作用引发新的弛豫. 通过模拟和分析理论，我们表明该模型再现了与动态异质性相关的主要显着事实，并提供了一种机制来解释玻璃化转变时动态相关性的出现。我们还讨论了如何将其推广并与当前理论相结合。