Glassy dynamics and hysteresis in a linear system of orientable hard rods

Details Glassy dynamics and hysteresis in a linear system of orientable hard rods Glassy dynamics and hysteresis in a linear system of orientable hard rods

2011-06-13

arxiv.org/abs/1106.2368v1

Physical Review E 84 (2011) 011505

Physics

Condensed Matter

Disordered Systems and Neural Networks

7 pages

Scientific paper

10.1103/PhysRevE.84.011505

We study the dynamics of a one-dimensional fluid of orientable hard rectangles with a non-coarse-grained microscopic mechanism of facilitation. The length occupied by a rectangle depends on its orientation, which is coupled to an external field. The equilibrium properties of our model are essentially those of the Tonks gas, but at high densities, the orientational degrees of freedom become effectively frozen due to jamming. This is a simple analytically tractable model of glassy phase. Under a cyclic variation of the pressure, hysteresis is observed. Following a pressure quench, the orientational persistence exhibits a two-stage decay characteristic of glassy systems.

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