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arXiv 1912.02465cond-mat.stat-mech
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Fredrickson-Andersen模型中的动力学相共存

Dynamical phase coexistence in the Fredrickson-Andersen model

Robert L. Jack, Takahiro Nemoto, Vivien Lecomte

摘要:

本文分析了Fredrickson-Andersen(FA)模型中的一阶动力学相变。我们构建了一个二维自旋系统的热力学性质再现动力学大偏差的FA模型,我们分析了这个系统的数值,比较我们的结果与有限尺寸标度理论。这使我们能够合理化最近的结果FA模型,包括指数发散的相共存的易感性。我们还讨论了一个简单的界面模型,定量再现共存的FA模型的行为。

英文摘要:

We analyse a first-order dynamical phase transition that takes place in the Fredrickson--Andersen (FA) model. We construct a two-dimensional spin system whose thermodynamic properties reproduce the dynamical large deviations of the FA model and we analyse this system numerically, comparing our results with finite-size scaling theory. This allows us to rationalise recent results for the FA model, including the exponential divergence of its susceptibility at phase coexistence. We also discuss a simple interfacial model that reproduces quantitatively the behaviour of the FA model at coexistence.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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