Zero-temperature criticality in a simple glass model

David Head

doi:10.1088/0305-4470/33/3/303

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arXiv · cond-mat/9908067

Zero-temperature criticality in a simple glass model

David Head

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Abstract

We introduce the strongly-interacting trap model, a version of Bouchaud's trap model for glasses [Bouchaud J-P 1992 {\em J. Phys. I France {\bf 2}} 1705]. At finite temperatures the model exhibits glassy relaxation over intermediate timeframes but reaches a steady state at finite times. In limit of zero temperature and with a suitably renormalised timescale the model maps onto the Bak-Sneppen model, widely studied in the context of self-organised criticality [Bak P and Sneppen K 1993 {\em Phys. Rev. Lett. {\bf 71}} 4083]. Hence zero temperature is a critical point in all dimensions. These claims are supported by mean field analysis of the stationary solution and numerical simulations of a finite-dimensional lattice model.

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David Head. 1999-08-04. Zero-temperature criticality in a simple glass model. https://doi.org/10.1088/0305-4470%2F33%2F3%2F303

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