eprintid: 1870 rev_number: 10 eprint_status: archive userid: 6 dir: disk0/00/00/18/70 datestamp: 2013-11-06 10:56:50 lastmod: 2014-12-05 09:45:08 status_changed: 2013-11-06 10:56:50 type: article metadata_visibility: show creators_name: Chessa, Alessandro creators_name: Marinari, Enzo creators_name: Vespignani, Alessandro creators_id: alessandro.chessa@imtlucca.it creators_id: creators_id: title: Energy constrained sandpile models ispublished: pub subjects: QC divisions: EIC full_text_status: public keywords: PACS: 64.60.Lx, 05.40.+j, 05.70.Ln, 46.10.+z note: © 1998 American Physical Society abstract: We study two driven dynamical systems with conserved energy. The two automata contain the basic dynamical rules of the Bak, Tang, and Wiesenfeld sandpile model. In addition a global constraint on the energy contained in the lattice is imposed. In the limit of an infinitely slow driving of the system, the conserved energy E becomes the only parameter governing the dynamical behavior of the system. Both models show scale-free behavior at a critical value Ec of the fixed energy. The scaling with respect to the relevant scaling field points out that the developing of critical correlations is in a different universality class than self-organized critical sandpiles. Despite this difference, the activity (avalanche) probability distributions appear to coincide with the one of the standard self-organized critical sandpile. date: 1998-05 date_type: published publication: Physical Review Letters volume: 80 publisher: American Physical Society pagerange: 4217-4220 id_number: 10.1103/PhysRevLett.80.4217 refereed: TRUE issn: 0031-9007 official_url: http://link.aps.org/doi/10.1103/PhysRevLett.80.4217 related_url_url: http://arxiv.org/abs/cond-mat/9712127 citation: Chessa, Alessandro and Marinari, Enzo and Vespignani, Alessandro Energy constrained sandpile models. Physical Review Letters, 80. pp. 4217-4220. ISSN 0031-9007 (1998) document_url: http://eprints.imtlucca.it/1870/1/PhysRevLett.Chessa_1998.pdf