论文标题

玻璃形成液体中的随机场伊辛模型临界

Random-field Ising model criticality in a glass-forming liquid

论文作者

Guiselin, Benjamin, Berthier, Ludovic, Tarjus, Gilles

论文摘要

我们使用计算机模拟研究了线性耦合到淬火参考配置的超冷液体的扩展相图。广泛的有限尺寸缩放分析表明,与最近的现场理论方法一致,存在随机场ISING模型(RFIM)临界点和一阶过渡线的存在。这个临界点附近的动力学类似于类似RFIM的系统的特殊激活缩放尺度,并且重叠自相关显示对数拉伸。我们的研究表明,在平衡处的三维超冷液体的热力学极限中的RFIM关键性。

We use computer simulations to investigate the extended phase diagram of a supercooled liquid linearly coupled to a quenched reference configuration. An extensive finite-size scaling analysis demonstrates the existence of a random-field Ising model (RFIM) critical point and of a first-order transition line, in agreement with recent field-theoretical approaches. The dynamics in the vicinity of this critical point resembles the peculiar activated scaling of RFIM-like systems, and the overlap autocorrelation displays a logarithmic stretching. Our study demonstrates RFIM criticality in the thermodynamic limit for a three-dimensional supercooled liquids at equilibrium.

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