Growing Correlation Length on Cooling Below the Onset of Caging in a Simulated Glass-Forming Liquid

Details Growing Correlation Length on Cooling Below the Onset of Caging in a Simulated Glass-Forming Liquid Growing Correlation Length on Cooling Below the Onset of Caging in a Simulated Glass-Forming Liquid

2002-07-09

arxiv.org/abs/cond-mat/0207238v1

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

10.1103/PhysRevE.66.030101

We present a calculation of a fourth-order, time-dependent density correlation function that measures higher-order spatiotemporall correlations of the density of a liquid. From molecular dynamics simulations of a glass-forming Lennard-Jones liquid, we find that the characteristic length scale of this function has a maximum as a function of time which increases steadily beyond the characteristic length of the static pair correlation function $g(r)$ in the temperature range approaching the mode coupling temperature from above.

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