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摘要翻译：
在过冷液体中，偏生素之间的转变似乎是通过快速的“民主的”集体粒子重排发生的。这里我们表明，这种明显的均匀粒子运动是动力学易化的直接结果。我们通过研究促进自旋模型和约束晶格气体中的元转换来做到这一点。我们发现元数据库转换通过一系列发生在相对较短时间内的局部促进事件发生。当在足够小的空间窗口上观察时，这些事件显得突然而均匀。我们的结果表明，偏基蛋白转变本质上是“非民主”的起源，这是玻璃形成过程中动力学异质性的另一种表现。
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英文标题：
《Dynamic facilitation explains democratic particle motion of metabasin
transitions》
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作者：
Lester O. Hedges, Juan P. Garrahan
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最新提交年份：
2007
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分类信息：
一级分类：Physics 物理学
二级分类：Statistical Mechanics 统计力学
分类描述：Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变，热力学，场论，非平衡现象，重整化群和标度，可积模型，湍流
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一级分类：Physics 物理学
二级分类：Soft Condensed Matter 软凝聚态物质
分类描述：Membranes, polymers, liquid crystals, glasses, colloids, granular matter
膜，聚合物，液晶，玻璃，胶体，颗粒物质
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英文摘要：
Transitions between metabasins in supercooled liquids seem to occur through rapid "democratic" collective particle rearrangements. Here we show that this apparent homogeneous particle motion is a direct consequence of dynamic facilitation. We do so by studying metabasin transitions in facilitated spin models and constrained lattice gases. We find that metabasin transitions occur through a sequence of locally facilitated events taking place over a relatively short time frame. When observed on small enough spatial windows these events appear sudden and homogeneous. Our results indicate that metabasin transitions are essentially "non-democratic" in origin and yet another manifestation of dynamical heterogeneity in glass formers.
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PDF链接：
https://arxiv.org/pdf/706.0902
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