{ "id": "cond-mat/0506780", "version": "v3", "published": "2005-06-29T20:58:26.000Z", "updated": "2005-08-21T18:15:08.000Z", "title": "Exact Enumeration of Ground States in the Sherrington-Kirkpatrick Spin Glass", "authors": [ "Stefan Boettcher", "Tomasz M. Kott" ], "comment": "4 pages, RevTex, 1 eps-figure included, added derivation of Gumbel distribution in SK (for related articles see http://www.physics.emory.edu/faculty/boettcher/publications.html)", "journal": "Phys. Rev. B 72, 212408 (2005)", "doi": "10.1103/PhysRevB.72.212408", "categories": [ "cond-mat.dis-nn", "cond-mat.stat-mech" ], "abstract": "Using the discrete $\\pm J$ bond distribution for the Sherrington-Kirkpatrick spin glass, all ground states for the entire ensemble of the bond disorder are enumerated. Although the combinatorial complexity of the enumeration severely restricts attainable system sizes, here $N\\leq9$, some remarkably intricate patterns found in previous studies already emerge. The analysis of the exact ground state frequencies suggests a direct construction of their probability density function. Against expectations, the result suggests that its highly skewed appearance for finite $N$ evolves logarithmically slow towards a Gaussian distribution.", "revisions": [ { "version": "v3", "updated": "2005-08-21T18:15:08.000Z" } ], "analyses": { "keywords": [ "sherrington-kirkpatrick spin glass", "exact enumeration", "exact ground state frequencies", "severely restricts attainable system sizes", "probability density function" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. B" }, "note": { "typesetting": "RevTeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable" } } }