{ "id": "cond-mat/9904296", "version": "v2", "published": "1999-04-21T11:41:37.000Z", "updated": "1999-04-27T17:34:05.000Z", "title": "Calculation of ground states of four-dimensional +or- J Ising spin glasses", "authors": [ "Alexander K. Hartmann" ], "comment": "5 pages, 3 figures, 31 references, revtex; update of references", "journal": "Phys. Rev. E 60, 5135 (1999)", "doi": "10.1103/PhysRevE.60.5135", "categories": [ "cond-mat.dis-nn" ], "abstract": "Ground states of four-dimensional (d=4) EA Ising spin glasses are calculated for sizes up to 7x7x7x7 using a combination of a genetic algorithm and cluster-exact approximation. The ground-state energy of the infinite system is extrapolated as e_0=-2.095(1). The ground-state stiffness (or domain wall) energy D is calculated. A D~L^{\\Theta} behavior with \\Theta=0.65(4) is found which confirms that the d=4 model has an equilibrium spin-glass-paramagnet transition for non-zero T_c.", "revisions": [ { "version": "v2", "updated": "1999-04-27T17:34:05.000Z" } ], "analyses": { "keywords": [ "ground states", "four-dimensional", "calculation", "ea ising spin glasses", "equilibrium spin-glass-paramagnet transition" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. E" }, "note": { "typesetting": "RevTeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable" } } }