Force distributions near the jamming and glass transitions

Details Force distributions near the jamming and glass transitions Force distributions near the jamming and glass transitions

2000-05-02

arxiv.org/abs/cond-mat/0005035v2

Phys. Rev. Lett. 86, 111 (2001)

Physics

Condensed Matter

Soft Condensed Matter

4 pages, 3 postscript figures;Version 3 replaces figure 1 and removes figure 2 from version 1. Significant rewording of versio

Scientific paper

10.1103/PhysRevLett.86.111

We calculate the distribution of interparticle normal forces $P(F)$ near the glass and jamming transitions in model supercooled liquids and foams, respectively. $P(F)$ develops a peak that appears near the glass or jamming transitions, whose height increases with decreasing temperature, decreasing shear stress and increasing packing density. A similar shape of $P(F)$ was observed in experiments on static granular packings. We propose that the appearance of this peak signals the development of a yield stress. The sensitivity of the peak to temperature, shear stress and density lends credence to the recently proposed generalized jamming phase diagram.

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