Growing length and time scales in a suspension of athermal particles

Details Growing length and time scales in a suspension of athermal particles Growing length and time scales in a suspension of athermal particles

2008-07-23

arxiv.org/abs/0807.3678v3

Phys. Rev. E 79, 050301(R) (2009)

Physics

Condensed Matter

Soft Condensed Matter

Scientific paper

10.1103/PhysRevE.79.050301

We simulate a relaxation process of non-brownian particles in a sheared viscous medium; the small shear strain is initially applied to a system, which then undergoes relaxation. The relaxation time and the correlation length are estimated as functions of density, which algebraically diverge at the jamming density. This implies that the relaxation time can be scaled by the correlation length using the dynamic critical exponent, which is estimated as 4.6(2). It is also found that shear stress undergoes power-law decay at the jamming density, which is reminiscent of critical slowing down.

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