{ "id": "0811.2726", "version": "v1", "published": "2008-11-17T15:45:19.000Z", "updated": "2008-11-17T15:45:19.000Z", "title": "Spontaneous ordering against an external field in nonequilibrium systems", "authors": [ "J. C. Gonzalez-Avella", "M. G. Cosenza", "V. M. Eguiluz", "M. San Miguel" ], "comment": "5 pages, 5 figures", "journal": "New J. Phys.12, 013010 (2010)", "doi": "10.1088/1367-2630/12/1/013010", "categories": [ "cond-mat.dis-nn", "cond-mat.stat-mech" ], "abstract": "We study the collective behavior of nonequilibrium systems subject to an external field with a dynamics characterized by the existence of non-interacting states. Aiming at exploring the generality of the results, we consider two types of models according to the nature of their state variables: (i) a vector model, where interactions are proportional to the overlap between the states, and (ii) a scalar model, where interaction depends on the distance between states. In both cases the system displays three phases: two ordered phases, one parallel to the field, and another orthogonal to the field; and a disordered phase. The phase space is numerically characterized for each model in a fully connected network. By placing the particles on a small-world network, we show that, while a regular lattice favors the alignment with the field, the presence of long-range interactions promotes the formation of the ordered phase orthogonal to the field.", "revisions": [ { "version": "v1", "updated": "2008-11-17T15:45:19.000Z" } ], "analyses": { "keywords": [ "external field", "spontaneous ordering", "long-range interactions promotes", "nonequilibrium systems subject", "regular lattice favors" ], "tags": [ "journal article" ], "publication": { "journal": "New Journal of Physics", "year": 2010, "month": "Jan", "volume": 12, "number": 1, "pages": "013010" }, "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010NJPh...12a3010G" } } }