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We study critical properties of the continuous Abelian sandpile model with anisotropies in toppling rules that produce ordered patterns on it. Also we consider the continuous directed sandpile model perturbed by a weak quenched randomness…

Statistical Mechanics · Physics 2013-05-29 N. Azimi-Tafreshi , S. Moghimi-Araghi

We show that Zhang's sandpile model (N,[a,b]) on N sites and with uniform additions on [a,b] has a unique stationary measure for all 0 <= a < b <= 1. This generalizes earlier results where this was shown in some special cases. We define the…

Mathematical Physics · Physics 2009-07-03 Anne Fey , Haiyan Liu , Ronald Meester

The Abelian sandpile process evolves configurations of chips on the integer lattice by toppling any vertex with at least 4 chips, distributing one of its chips to each of its 4 neighbors. When begun from a large stack of chips, the terminal…

Analysis of PDEs · Mathematics 2014-05-23 Lionel Levine , Wesley Pegden , Charles K. Smart

This is the third in a series of papers dealing with the algebraic theory of infinite classical lattices. This paper presents a theory of single measurements on a lattice which we represent as comprising a finite subvolume--the system of…

Mathematical Physics · Physics 2007-07-09 Don Ridgeway

We check the universality properties of the two-dimensional Abelian sandpile model by computing some of its properties on the honeycomb lattice. Exact expressions for unit height correlation functions in presence of boundaries and for…

Statistical Mechanics · Physics 2011-02-16 N. Azimi-Tafreshi , H. Dashti-Naserabadi , S. Moghimi-Araghi , P. Ruelle

We define a new version of sandpile model which is very similar to Abelian Sandpile Model (ASM), but the height variables are continuous ones. With the toppling rule we define in our model, we show that the model can be mapped to ASM, so…

Statistical Mechanics · Physics 2007-10-29 N. Azimi-Tafreshi , E. Lotfi , S. Moghimi-Araghi

The abelian sandpile model is a simple combinatorial model for critical behaviour which has the "abelian property" that the order in which we make moves does not change the final outcome of the game. This might seem to restrict the model's…

Combinatorics · Mathematics 2021-03-26 Hannah Cairns

Ballistic deposition is one of the many models of interface growth that are believed to be in the KPZ universality class, but have so far proved to be largely intractable mathematically. In this model, blocks of size one fall independently…

Probability · Mathematics 2022-05-19 Sourav Chatterjee

We prove the existence of a limit of the finite volume probability measures generated by tree growth rules in Ford's alpha model of phylogenetic trees. The limiting measure is shown to be concentrated on the set of trees consisting of…

Mathematical Physics · Physics 2010-10-08 Sigurdur Orn Stefansson

Vicsek fractal graphs are an important class of infinite graphs with self similar properties, polynomial growth and treelike features, on which several dynamical processes such as random walks or Abelian sandpiles can be rigorously analyzed…

Probability · Mathematics 2024-08-22 Nico Heizmann , Robin Kaiser , Ecaterina Sava-Huss

We introduce a one-dimensional sandpile model which incorporates particle inertia. The inertial dynamics are governed by a new parameter which, as it passes through a threshold value, alters the toppling dynamics in such a way that the…

Condensed Matter · Physics 2009-10-28 D. A. Head , G. J. Rodgers

The Abelian sandpile model was the first example of a self-organized critical system studied by Bak, Tang and Wiesenfeld. The dynamics of the sandpiles occur when the grains topple over a graph. In this study, we allow the graph to evolve…

Combinatorics · Mathematics 2024-07-24 Carlos A. Alfaro , Juan Pablo Serrano , Ralihe R. Villagrán

An Abelian sandpile model is considered on the Husimi lattice of triangles with an arbitrary coordination number q. Exact expressions for the distribution of height probabilities in the Self-Organized Critical state are derived.

Condensed Matter · Physics 2007-05-23 Vl. V. Papoyan , R. R. Shcherbakov

In this paper we study a triple generalization of the Leaky Abelian Sandpile Model (LASM) of Alevy and Mkrtchyan, originally analyzed in the case of the square lattice in dimension two. First, we work in any dimension. Second, each site can…

Probability · Mathematics 2025-01-23 Théo Ballu , Cédric Boutillier , Sevak Mkrtchyan , Kilian Raschel

The Abelian Sandpile Model is a cellular automaton whose discrete dynamics reaches an out-of-equilibrium steady state resembling avalanches in piles of sand. The fundamental moves defining the dynamics are encoded by the toppling rules. The…

Statistical Mechanics · Physics 2012-09-25 Sergio Caracciolo , Guglielmo Paoletti , Andrea Sportiello

We introduce a natural Boltzmann measure over polyominoes induced by boundary avalanches in the Abelian Sandpile Model. Through the study of a suitable associated process, we give an argument suggesting that the probability distribution of…

Discrete Mathematics · Computer Science 2024-06-25 Andrea Sportiello

In this work, we present a proof of the existence of real and ordered solutions to the generalized Bethe Ansatz equations for the one dimensional Hubbard model on a finite lattice, with periodic boundary conditions. The existence of a…

Strongly Correlated Electrons · Physics 2009-11-10 Pedro S. Goldbaum

We study the Abelian sandpile model (ASM), a process where grains of sand are placed on a graph's vertices. When the number of grains on a vertex is at least its degree, one grain is distributed to each neighboring vertex. This model has…

Probability · Mathematics 2019-01-18 Samantha Fairchild , Ilse Haim , Rafael G. Setra , Robert S. Strichartz , Travis Westura

We present a construction of an entropy-preserving equivariant surjective map from the $d$-dimensional critical sandpile model to a certain closed, shift-invariant subgroup of $\mathbb{T}^{\mathbb{Z}^d}$ (the `harmonic model'). A similar…

Dynamical Systems · Mathematics 2015-05-13 Klaus Schmidt , Evgeny Verbitskiy

A popular theory of self-organized criticality relates driven dissipative systems to systems with conservation. This theory predicts that the stationary density of the abelian sandpile model equals the threshold density of the fixed-energy…

Statistical Mechanics · Physics 2010-06-10 Anne Fey , Lionel Levine , David B. Wilson