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Percolation analysis of force networks in anisotropic granular matter
dc.contributor.author | Pastor Satorras, Romualdo |
dc.contributor.author | Miguel Lopez, Maria del Carmen |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear |
dc.date.accessioned | 2013-11-12T19:25:24Z |
dc.date.available | 2013-11-12T19:25:24Z |
dc.date.created | 2012-02-09 |
dc.date.issued | 2012-02-09 |
dc.identifier.citation | Pastor-Satorras, R.; Miguel, M.-C. Percolation analysis of force networks in anisotropic granular matter. "Journal of statistical mechanics: Theory and experiment", 09 Febrer 2012, vol. 2012, p. P02008-1-P02008-12. |
dc.identifier.issn | 1742-5468 |
dc.identifier.uri | http://hdl.handle.net/2117/20597 |
dc.description.abstract | We study the percolation properties of force networks in an anisotropic model for granular packings, the so-called q-model. Following the original recipe of Ostojic et al (2006 Nature 439 828), we consider a percolation process in which forces smaller than a given threshold f are deleted in the network. For a critical threshold fc, the system experiences a transition akin to percolation. We determine the point of this transition and its characteristic critical exponents applying a finite-size scaling analysis that takes explicitly into account the directed nature of the q-model. By means of extensive numerical simulations, we show that this percolation transition is strongly affected by the anisotropic nature of the model, yielding characteristic exponents which are neither those found in isotropic granular systems nor those in the directed version of standard percolation. The differences shown by the computed exponents can be related to the presence of strong directed correlations and mass conservation laws in the model under scrutiny. |
dc.language.iso | eng |
dc.publisher | IOP PUBLISHING LTD. |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Física |
dc.subject.lcsh | Finite size scaling (Statistical physics) |
dc.subject.lcsh | Percolation (Statistical physics) |
dc.subject.other | finite-size scaling |
dc.subject.other | percolation problems (theory) |
dc.subject.other | granular matter |
dc.subject.other | jamming and packing |
dc.title | Percolation analysis of force networks in anisotropic granular matter |
dc.type | Article |
dc.subject.lemac | Percolació (Física estadística) |
dc.contributor.group | Universitat Politècnica de Catalunya. SIMCON - First-principles approaches to condensed matter physics: quantum effects and complexity |
dc.identifier.doi | 10.1088/1742-5468/2012/02/P02008 |
dc.relation.publisherversion | http://iopscience.iop.org/1742-5468/2012/02/P02008/article |
dc.rights.access | Open Access |
local.identifier.drac | 12869430 |
dc.description.version | Postprint (published version) |
local.citation.author | Pastor-Satorras, R.; Miguel, M.-C. |
local.citation.publicationName | Journal of statistical mechanics: Theory and experiment |
local.citation.volume | 2012 |
local.citation.startingPage | P02008-1 |
local.citation.endingPage | P02008-12 |
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