Memory in aged granular media

Abstract

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 long-term memory for highly compact (aged) systems. A natural interpretation of these results is provided by the analysis of the density heterogeneities.

5 eps figures, uses euromacr.tex and europhys.sty (included)

References in corpus (4)

• Memory Effects in Granular Material
• Compaction of a granular material under cyclic shear
• Response properties in a model for granular matter
• A minimal model for slow dynamics: Compaction of granular media under vibration or shear

Cited by in corpus (9)

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• Fluctuating particle motion during shear induced granular compaction
• Kovacs-like memory effect in driven granular gases
• Hopping in the Glass Configuration Space: Subaging and Generalized Scaling Laws
• Slow dynamics under gravity: a nonlinear diffusion model
• What is the temperature of a granular medium?
• Memory effect in uniformly heated granular gases
• On the definition of temperature in dense granular media
• Fluctuation-Dissipation Ratio for Compacting Granular Media