{ "id": "cond-mat/9909168", "version": "v2", "published": "1999-09-13T16:02:09.000Z", "updated": "1999-09-23T16:18:58.000Z", "title": "Combinatorial and topological approach to the 3D Ising model", "authors": [ "Tullio Regge", "Riccardo Zecchina" ], "comment": "33 pages, 5 figures", "journal": "J.Phys.A33:741-761,2000", "doi": "10.1088/0305-4470/33/4/308", "categories": [ "cond-mat.stat-mech", "hep-th", "math.CO" ], "abstract": "We extend the planar Pfaffian formalism for the evaluation of the Ising partition function to lattices of high topological genus g. The 3D Ising model on a cubic lattice, where g is proportional to the number of sites, is discussed in detail. The expansion of the partition function is given in terms of 2^{2 g} Pfaffians classified by the oriented homology cycles of the lattice, i.e. by its spin-structures. Correct counting is guaranteed by a signature term which depends on the topological intersection of the oriented cycles through a simple bilinear formula. The role of a gauge symmetry arising in the above expansion is discussed. The same formalism can be applied to the counting problem of perfect matchings over general lattices and provides a determinant expansion of the permanent of 0-1 matrices.", "revisions": [ { "version": "v2", "updated": "1999-09-23T16:18:58.000Z" } ], "analyses": { "keywords": [ "3d ising model", "topological approach", "combinatorial", "simple bilinear formula", "planar pfaffian formalism" ], "tags": [ "journal article" ], "publication": { "journal": "Journal of Physics A Mathematical General", "year": 2000, "month": "Feb", "volume": 33, "number": 4, "pages": 741 }, "note": { "typesetting": "TeX", "pages": 33, "language": "en", "license": "arXiv", "status": "editable", "inspire": 507124, "adsabs": "2000JPhA...33..741R" } } }