Centre for Condensed Matter Theory, Department of Physics, Indian Institute of Science, Bangalore, 560012, India.
Phys Rev Lett. 2010 Jul 2;105(1):015701. doi: 10.1103/PhysRevLett.105.015701. Epub 2010 Jul 1.
The growth of characteristic length scales associated with dynamic heterogeneity in glass-forming liquids is investigated in an extensive computational study of a four-point, time-dependent structure factor defined from spatial correlations of mobility, for a model liquid for system sizes extending up to 351 232 particles, in constant-energy and constant-temperature ensembles. Our estimates for dynamic correlation lengths and susceptibilities are consistent with previous results from finite size scaling. We find scaling exponents that are inconsistent with predictions from inhomogeneous mode coupling theory and a recent simulation confirmation of these predictions.
我们对一个四点时变结构因子进行了广泛的计算研究，该结构因子源自模型液体中迁移率的空间关联，用于模拟能量和温度固定的体系大小可达 351232 个粒子的情况。我们对动态相关长度和磁化率的估计与之前的有限尺寸标度结果一致。我们发现的标度指数与非均匀模态耦合理论的预测以及最近对这些预测的模拟验证结果不一致。
