Citation

Cerruti B, Vives E. Phys. Rev. E Stat. Nonlin. Soft Matter Phys. 2009; 80(1 Pt 1): 011105.

Affiliation

Departament d'Estructura i Constituents de la Materia, Facultat de Física, Universitat de Barcelona, Martí i Franques 1, 08028 Barcelona, Catalonia.

Copyright

(Copyright © 2009, American Physical Society, Publisher American Institute of Physics)

DOI

unavailable

PMID

19658651

Abstract

Avalanche dynamics and related power-law statistics are ubiquitous in nature, arising in phenomena such as earthquakes, forest fires, and solar flares. Very interestingly, an analogous behavior is associated with many condensed-matter systems, such as ferromagnets and martensites. Bearing it in mind, we study the prototypical random-field Ising model at T=0 . We find a finite correlation between waiting intervals and the previous avalanche size. This correlation is not found in other models for avalanches but it is experimentally found in earthquakes and in forest fires. Our study suggests that this effect occurs in critical points that are at the end of a first-order discontinuity separating two regimes: one with high activity from another with low activity.

Language: en