{ "id": "cond-mat/0212070", "version": "v2", "published": "2002-12-03T18:52:16.000Z", "updated": "2003-10-07T16:13:06.000Z", "title": "Energy exponents and corrections to scaling in Ising spin glasses", "authors": [ "J. -P. Bouchaud", "F. Krzakala", "O. C. Martin" ], "comment": "12 pages, RevTex, 9 figures", "journal": "Phys. Rev. B 68, 224404 (2003).", "doi": "10.1103/PhysRevB.68.224404", "categories": [ "cond-mat.dis-nn" ], "abstract": "We study the probability distribution P(E) of the ground state energy E in various Ising spin glasses. In most models, P(E) seems to become Gaussian with a variance growing as the system's volume V. Exceptions include the Sherrington-Kirkpatrick model (where the variance grows more slowly, perhaps as the square root of the volume), and mean field diluted spin glasses having +/-J couplings. We also find that the corrections to the extensive part of the disorder averaged energy grow as a power of the system size; for finite dimensional lattices, this exponent is equal, within numerical precision, to the domain-wall exponent theta_DW. We also show how a systematic expansion of theta_DW in powers of exp(-d) can be obtained for Migdal-Kadanoff lattices. Some physical arguments are given to rationalize our findings.", "revisions": [ { "version": "v2", "updated": "2003-10-07T16:13:06.000Z" } ], "analyses": { "keywords": [ "ising spin glasses", "energy exponents", "corrections", "mean field diluted spin glasses", "ground state energy" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. B" }, "note": { "typesetting": "RevTeX", "pages": 12, "language": "en", "license": "arXiv", "status": "editable" } } }