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A globally driven self-organized critical model of earthquakes with conservative dynamics has been studied. An open but moving boundary condition has been used so that the origin (epicenter) of every avalanche (earthquake) is at the center…

统计力学 · 物理学 2009-11-11 S. S. Manna , K. Bhattacharya

The effect of bulk dissipation on non critical sandpile models is studied using both multifractal and finite size scaling analyses. We show numerically that the local limited (LL) model exhibits a crossover from multifractal to self-similar…

统计力学 · 物理学 2007-05-23 A. Benyoussef , M. Khfifi , M. Loulidi

We study the near-equilibrium critical dynamics of the $O(3)$ nonlinear sigma model describing isotropic antiferromagnets with non-conserved order parameter reversibly coupled to the conserved total magnetization. To calculate response and…

统计力学 · 物理学 2022-06-28 Louie Hong Yao , Uwe C. Täuber

We introduce a deterministic self-organized critical system that is one dimensional and bulk driven. We find that there is no universality class associated with the system. That is, the critical exponents change as the parameters of the…

统计力学 · 物理学 2009-11-10 Maria de Sousa Vieira

The Bak-Tang-Wiesenfeld sandpile model provdes a simple and elegant system with which to demonstate self-organized criticality. This model has rather remarkable mathematical properties first elucidated by Dhar. I demonstrate some of these…

统计力学 · 物理学 2009-11-10 Michael Creutz

Nonequilibrium phase transitions between an active and an absorbing state are found in models of populations, epidemics, autocatalysis, and chemical reactions on a surface. While absorbing-state phase transitions fall generically in the DP…

统计力学 · 物理学 2009-11-07 Ronald Dickman

We investigate nonequilibrium critical properties of $O(n)$-symmetric models with reversible mode-coupling terms. Specifically, a variant of the model of Sasv\'ari, Schwabl, and Sz\'epfalusy is studied, where violation of detailed balance…

统计力学 · 物理学 2016-08-31 Uwe C. Täuber , Zoltán Rácz

We pursue the study of the Curie-Weiss model of self-organized criticality we designed in arXiv:1301.6911. We extend our results to more general interaction functions and we prove that, for a class of symmetric distributions satisfying a…

概率论 · 数学 2014-10-08 Matthias Gorny

We introduce a dissipative version of the Zhang's model of Self-Organized Criticality, where a parameter allows to tune the local energy dissipation. We analyze the main dynamical features of the model and relate in particular the Lyapunov…

混沌动力学 · 物理学 2015-06-26 B. Cessac , Ph. Blanchard , T. Krueger , J. L. Meunier

We study the off-equilibrium two-point critical response and correlation functions for the relaxational dynamics with a coupling to a conserved density (Model C) of the O(N) vector model. They are determined in an \epsilon=4-d expansion for…

统计力学 · 物理学 2009-11-07 Pasquale Calabrese , Andrea Gambassi

We consider a scalar conservation law with source in a bounded open interval $\Omega\subseteq\mathbb R$. The equation arises from the macroscopic evolution of an interacting particle system. The source term models an external effort driving…

偏微分方程分析 · 数学 2024-05-29 Lu Xu

The dynamical Curie-Weiss model of self-organized criticality (SOC) was introduced in \cite{Gor17} and it is derived from the classical generalized Curie-Weiss by imposing a microscopic Markovian evolution having the distribution of the…

概率论 · 数学 2020-03-31 Francesca Collet , Matthias Gorny , Richard Clemens Kraaij

Slowly driven dissipative systems may evolve to a critical state where long periods of apparent equilibrium are punctuated by intermittent avalanches of activity. We present a self-organized critical model of punctuated equilibrium behavior…

凝聚态物理 · 物理学 2009-10-28 Stefan Boettcher , Maya Paczuski

In this paper, we introduce a Markov process whose unique invariant distribution is the Curie-Weiss model of self-organized criticality (SOC) we designed in arXiv:1301.6911. In the Gaussian case, we prove rigorously that it is a dynamical…

概率论 · 数学 2015-11-17 Matthias Gorny

A stochastic nonlinear partial differential equation is built for two different models exhibiting self-organized criticality, the Bak, Tang, and Wiesenfeld (BTW) sandpile model and the Zhang's model. The dynamic renormalization group (DRG)…

凝聚态物理 · 物理学 2009-10-28 Alvaro Corral , Albert Diaz-Guilera

Recent experiments with strongly interacting, driven Rydberg ensembles have introduced a promising setup for the study of self-organized criticality (SOC) in cold atom systems. Based on this setup, we theoretically propose a control…

量子气体 · 物理学 2019-05-27 Kai Klocke , Michael Buchhold

We demonstrate that hyperuniformity, the suppression of density fluctuations at large length scales, emerges generically from the interplay between conservation laws and non-equilibrium driving. The underlying mechanism for this emergence…

统计力学 · 物理学 2025-12-09 Raphaël Maire , Ludivine Chaix

Self-organized criticality is a dynamical system property where, without external tuning, a system naturally evolves towards its critical state, characterized by scale-invariant patterns and power-law distributions. In this paper, we…

统计力学 · 物理学 2024-12-16 Viviana Gomez , Gabriel Tellez

Depending on the rule for tree growth, the forest-fire model shows either self-organized criticality with rule-dependent exponents, or synchronization, or an intermediate behavior. This is shown analytically for the one-dimensional system,…

凝聚态物理 · 物理学 2009-10-28 Barbara Drossel

The existence of self-organized criticality in the Barkhausen effect and its analogy with sandpile models is investigated. It is demonstrated that a model recently introduced to describe the dynamics of a domain wall [Cizeau et al, Phys.…

凝聚态物理 · 物理学 2007-05-23 Alexei Vazquez , Oscar Sotolongo-Costa