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arXiv 1303.3531cond-mat.softcond-mat.stat-mech
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Pacman逾渗和玻璃化转变

Pacman Percolation and the Glass Transition

Raffaele Pastore, Massimo Pica Ciamarra, Antonio Coniglio

摘要:

我们调查通过蒙特卡罗模拟的动力学约束的Kob-Andersen晶格玻璃模型显示,与目前的预期相反,弛豫过程和动力学的异质性似乎是由不同的时间尺度的特点。事实上,我们发现,弛豫时间是一个反向渗滤过渡,而最大的异质性的时间是有关的粒子之间的空间相关性。这项调查导致的松弛过程和不同的观察到的时间尺度的几何解释。

英文摘要:

We investigate via Monte Carlo simulations the kinetically constrained Kob-Andersen lattice glass model showing that, contrary to current expectations, the relaxation process and the dynamical heterogeneities seems to be characterized by different time scales. Indeed, we found that the relaxation time is related to a reverse percolation transition, whereas the time of maximum heterogeneity is related to the spatial correlation between particles. This investigation leads to a geometrical interpretation of the relaxation processes and of the different observed time scales.

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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