Volume 85, Number 1, January 2009
|Number of page(s)||4|
|Published online||07 January 2009|
Multi-avalanche correlations in directed sandpile models
Institute of Mathematical Sciences, CIT Campus - Taramani, Chennai-600113, India
Corresponding author: email@example.com
Accepted: 24 November 2008
Multiple avalanches, initiated by simultaneously toppling neighbouring sites, are studied in three different directed sandpile models. It is argued that, while the single-avalanche exponents are different for the three models, a suitably defined two-avalanche distribution has identical exponents. The origin of this universality is traced to particle conservation.
PACS: 05.65.+b – Self-organized systems / 05.70.Ln – Nonequilibrium and irreversible thermodynamics / 47.27.eb – Statistical theories and models
© EPLA, 2009
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