{ "id": "cond-mat/0501619", "version": "v2", "published": "2005-01-26T02:32:24.000Z", "updated": "2005-08-18T21:11:47.000Z", "title": "Ground states and thermal states of the random field Ising model", "authors": [ "Yong Wu", "Jon Machta" ], "comment": "5 pages, 5 figures; new material added in this version", "journal": "Phys. Rev. Lett. 95, 137208 (2005)", "doi": "10.1103/PhysRevLett.95.137208", "categories": [ "cond-mat.stat-mech", "cond-mat.dis-nn" ], "abstract": "The random field Ising model is studied numerically at both zero and positive temperature. Ground states are mapped out in a region of random and external field strength. Thermal states and thermodynamic properties are obtained for all temperatures using the the Wang-Landau algorithm. The specific heat and susceptibility typically display sharp peaks in the critical region for large systems and strong disorder. These sharp peaks result from large domains flipping. For a given realization of disorder, ground states and thermal states near the critical line are found to be strongly correlated--a concrete manifestation of the zero temperature fixed point scenario.", "revisions": [ { "version": "v2", "updated": "2005-08-18T21:11:47.000Z" } ], "analyses": { "keywords": [ "random field ising model", "ground states", "thermal states", "typically display sharp peaks", "zero temperature fixed point scenario" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. Lett." }, "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable" } } }