论文标题
玻璃形成液体中的弹性,促进和动态异质性
Elasticity, Facilitation and Dynamic Heterogeneity in Glass-Forming liquids
论文作者
论文摘要
我们研究了弹性诱导的促进作用对玻璃形成液体动力学的作用,这是一个粗粒二维模型,在这种模型中,通过热激活发生的局部弛豫事件可以通过长期弹性介导的相互作用引发新的放松。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,并提供了一种解释玻璃转变时动态相关性的出现的机制。我们还讨论了如何将其与当前理论相结合。
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.