Transport in Sand Piles, Interface Depinning, and Earthquake Models

Дата и время публикации : 1996-03-16T03:00:06Z

Авторы публикации и институты :
Maya Paczuski (Brookhaven National Laboratory, University of Oklahoma)
Stefan Boettcher (Brookhaven National Laboratory, University of Oklahoma)

Ссылка на журнал-издание: Physical Review Letters 77, 111 (1996)
Коментарии к cтатье: 10 pages, Revtex
Первичная категория: cond-mat

Все категории : cond-mat, adap-org, nlin.AO

Краткий обзор статьи: Recent numerical results for a model describing dispersive transport in rice piles are explained by mapping the model to the depinning transition of an interface that is dragged at one end through a random medium. The average velocity of transport vanishes with system size $L$ as $<v> sim L^{2-D}sim L^{-0.23}$, and the avalanche size distribution exponent $tau= 2 – 1/D simeq 1.55$, where $Dsimeq 2.23$ from interface depinning. We conjecture that the purely deterministic Burridge-Knopoff “train” model for earthquakes is in the same universality class.

Category: Physics