| Issue |
Europhys. Lett.
Volume 61, Number 3, February 2003
|
|
|---|---|---|
| Page(s) | 294 - 300 | |
| Section | General | |
| DOI | https://doi.org/10.1209/epl/i2003-00198-7 | |
| Published online | 01 January 2003 | |
Generic slow relaxation in a stochastic sandpile
Departamento de Física, ICEx, Universidade Federal de Minas
Gerais Caixa Postal 702, 30161-970 Belo Horizonte, Minas Gerais,
Brazil
Corresponding author: dickman@fisica.ufmg.br
Received:
26
September
2002
Accepted:
14
November
2002
Simulations of a stochastic fixed-energy sandpile in one and two dimensions reveal slow relaxation of the order parameter, even far from the critical point. The decay of the activity is best described by a stretched-exponential form. The persistence probability (for a site not to have toppled up to time t) also exhibits stretched-exponential relaxation. The results suggest a connection between sandpile models and structural glasses.
PACS: 05.40.-a – Fluctuation phenomena, random processes, noise, and Brownian motion / 05.65.+b – Self-organized systems / 64.70.Pf – Glass transitions
© EDP Sciences, 2003
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