{ "id": "1803.10155", "version": "v2", "published": "2018-03-27T16:00:26.000Z", "updated": "2019-06-24T13:50:52.000Z", "title": "Anisotropic scaling of the two-dimensional Ising model I: the torus", "authors": [ "Hendrik Hobrecht", "Alfred Hucht" ], "comment": "34 pages, 10 figures, submitted to SciPost.org, revised version, text and references added, several errors fixed", "categories": [ "cond-mat.stat-mech", "hep-th", "math-ph", "math.MP" ], "abstract": "We present detailed calculations for the partition function and the free energy of the finite two-dimensional square lattice Ising model with periodic and antiperiodic boundary conditions, variable aspect ratio, and anisotropic couplings, as well as for the corresponding universal free energy finite-size scaling functions. Therefore, we review the dimer mapping, as well as the interplay between its topology and the different types of boundary conditions. As a central result, we show how both the finite system as well as the scaling form decay into contributions for the bulk, a characteristic finite-size part, and - if present - the surface tension, which emerges due to at least one antiperiodic boundary in the system. For the scaling limit we extend the proper finite-size scaling theory to the anisotropic case and show how this anisotropy can be absorbed into suitable scaling variables.", "revisions": [ { "version": "v2", "updated": "2019-06-24T13:50:52.000Z" } ], "analyses": { "keywords": [ "two-dimensional ising model", "square lattice ising model", "two-dimensional square lattice ising", "anisotropic scaling", "energy finite-size scaling functions" ], "note": { "typesetting": "TeX", "pages": 34, "language": "en", "license": "arXiv", "status": "editable" } } }