论文标题

如何“测量”结构性放松时间太长而无法测量?

How to "measure" a structural relaxation time that is too long to be measured?

论文作者

Berthier, Ludovic, Ediger, Mark D.

论文摘要

最近,可以制备以结构放松时间为特征的超高玻璃材料,该材料大大超过了任何可行的实验的持续时间。同样,新算法也导致了超高的计算机眼镜的生产。是否可以获得对结构放松时间太长无法测量的可靠估计?我们审查,组织和批判性地讨论各种方法来估计很长的放松时间。我们还对三维超级硬球玻璃杯进行计算机模拟,以测试并定量比较单个模型系统的某些方法。各种估计方法显着不同意,尚不清楚如何准确估计非常长的松弛时间。

It has recently become possible to prepare ultrastable glassy materials characterised by structural relaxation times which vastly exceed the duration of any feasible experiment. Similarly, new algorithms have led to the production of ultrastable computer glasses. Is it possible to obtain a reliable estimate of a structural relaxation time that is too long to be measured? We review, organise, and critically discuss various methods to estimate very long relaxation times. We also perform computer simulations of three dimensional ultrastable hard spheres glasses to test and quantitatively compare some of these methods for a single model system. The various estimation methods disagree significantly and it is not yet clear how to accurately estimate extremely long relaxation times.

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