relation: http://eprints.imtlucca.it/1139/
title: Local rigidity in sandpile models
creator: Ciliberti, Stefano
creator: Caldarelli, Guido
creator: Loreto, Vittorio
creator: Pietronero, Luciano
subject: QC Physics
description: We address the problem of the role of the concept of local rigidity in the family of sandpile systems. We define rigidity as the ratio between the critical energy and the amplitude of the external perturbation and we show, in the framework of the dynamically driven renormalization group, that any finite value of the rigidity in a generalized sandpile model renormalizes to an infinite value at the fixed point, i.e., on a large scale. The fixed-point value of the rigidity allows then for a nonambiguous distinction between sandpilelike systems and diffusive systems. Numerical simulations support our analytical results.
publisher: American Physical Society
date: 2002
type: Article
type: PeerReviewed
identifier:   Ciliberti, Stefano and Caldarelli, Guido and Loreto, Vittorio and Pietronero, Luciano  Local rigidity in sandpile models.  Physical Review E, 66 (1).   ISSN 1539-3755      (2002)  
relation: http://dx.doi.org/10.1103/PhysRevE.66.016133
relation: 10.1103/PhysRevE.66.016133