[en] We have investigated a model of tree growth in order to show that self-organized criticality (SOC) can emerge even if perturbations due to long-range interactions are propagating throughout the whole system. The interaction potential is assumed to be a power d(-alpha) of the distance d measured along the tree between branch extremities. A transition occurs for alpha(c)=1 according to simulation results between SOC (alpha>alpha(c) and non-SOC (alpha<alpha(c)) regimes. A theoretical treatment supports the idea that the transition occurs when the exponent a is equivalent to the fractal dimension D-f(S) of the backbone (skeleton) of the tree.
Disciplines :
Physics
Author, co-author :
Vandewalle, Nicolas ; Université de Liège - ULiège > Département de physique > Physique statistique
Van Puyvelde, H.
Ausloos, Marcel ; Université de Liège - ULiège > Département de physique > Physique statistique appliquée et des matériaux - S.U.P.R.A.S.
Language :
English
Title :
Self-organized criticality can emerge even if the range of interactions is infinite
Publication date :
January 1998
Journal title :
Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
ISSN :
1063-651X
eISSN :
1095-3787
Publisher :
American Physical Society, College Park, United States - Maryland
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