Memory in aged granular media

被引：21

作者：

Barrat, A

Loreto, V

机构：

[1] Univ Paris Sud, UMR 8627, Phys Theor Lab, F-91405 Orsay, France

[2] Univ Rome, Dipartimento Fis, I-00185 Rome, Italy

[3] INFM, Unita Roma 1, Rome, Italy

来源：

EUROPHYSICS LETTERS | 2001年 / 53卷 / 03期

关键词：

D O I：

10.1209/epl/i2001-00100-3

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Stimulated by recent experimental results, we simulate "temperature"-cycling experiments in a model for the compaction of granular media. We report on the existence of two types of memory effects: short-term dependence on the history of the sample, and longterm memory for highly compact (aged) systems. A natural interpretation of these results is provided by the analysis of the density heterogeneities.

引用

页码：297 / 303

页数：7

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