As liquids approach the glass transition temperature, dynamical heterogeneity emerges as a crucial universal feature of their behavior. Dynamic facilitation, where local motion triggers further motion nearby, plays a major role in this phenomenon. Here we show that long-ranged, elastically mediated facilitation appears below the mode coupling temperature, adding to the short-range component present at all temperatures. Our results suggest deep connections between the supercooled liquid and glass states, and pave the way for a deeper understanding of dynamical heterogeneity in glassy systems.

中文翻译：

---

弹塑性在模式耦合温度以下介导动态非均匀性

随着液体接近玻璃化转变温度，动态异质性成为其行为的关键普遍特征。动态促进，其中局部运动触发附近的进一步运动，在这种现象中起着重要作用。在这里，我们表明长程、弹性介导的易化出现在模式耦合温度以下，增加了在所有温度下都存在的短程分量。我们的结果表明过冷液体和玻璃状态之间存在深层联系，并为更深入地了解玻璃系统中的动态异质性铺平了道路。