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arXiv 0811.3190cond-mat.dis-nncond-mat.softcond-mat.stat-mech
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结构玻璃弛豫的普适涨落

Universal fluctuations in the relaxation of structural glasses

Azita Parsaeian, Horacio E. Castillo

摘要:

在各种各样的材料的玻璃化转变附近,已经观察到了强烈的局部波动-动力学不均匀性。在这里,我们探讨这些波动中可能存在的普遍性。我们比较了从四个不同的玻璃形成系统的数值模拟得到的波动的统计特性:两个聚合物系统和两个粒子系统。我们发现强有力的证据的普遍性,无论是在定性行为的波动和显着的协议的标度函数描述他们。

英文摘要:

The presence of strong local fluctuations -- dynamical heterogeneities -- has been observed near the glass transitions of a wide variety of materials. Here we explore the possible presence of universality in those fluctuations. We compare the statistical properties of fluctuations obtained from numerical simulations of four different glass-forming systems: two polymer systems and two particle systems. We find strong evidence for universality, both in the qualitative behavior of the fluctuations and in the remarkable agreement of the scaling functions describing them.

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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