Anomalous diffusion in a running sandpile model

Authors
Carreras, BA Lynch, VE Newman, DE Zaslavsky, GM
Citation
Ba. Carreras et al., Anomalous diffusion in a running sandpile model, PHYS REV E, 60(4), 1999, pp. 4770-4778
Citations number
19
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW E
ISSN journal
1063651X → ACNP
Volume
60
Issue
4
Year of publication
1999
Part
B
Pages
4770 - 4778
Database
ISI
SICI code
1063-651X(199910)60:4<4770:ADIARS>2.0.ZU;2-8
Abstract
To explore the character of underlying transport in a sandpile, we have fol lowed the motion of tracer particles. Moments of the distribution function of the particle positions, [/x(t) - x(o)/(n)] = D(0)t(nv(n)), are determine d as a function of the elapsed time. The numerical results show that the tr ansport mechanism for distances less than the sandpile length is superdiffu sive with an exponent v(n) close to 0.75, for n < 1. [S1063-651X(99)17410-5 ].