{ "id": "cond-mat/9710203", "version": "v1", "published": "1997-10-20T17:16:19.000Z", "updated": "1997-10-20T17:16:19.000Z", "title": "Lenz-Ising-Onsager problem in an external field as a soluble problem of many fermions", "authors": [ "Martin S. Kochman'ski" ], "comment": "47 pades, REVTEX", "doi": "10.1103/PhysRevE.56.3831", "categories": [ "cond-mat.stat-mech" ], "abstract": "In this paper a new approach to solving the 2D and 3D Ising models in external magnetic field $H\\neq0$ is developed. The general formalism for the approach to the problem is presented on the example of the 2D Ising model in the external magnetic field. The paper presents a new method obtaining the Onsager solution and computations of asymptotic forms of low-temperature free energy for the 2D Ising model in the external magnetic field $(H)$. The free energy in the limiting case of the magnetic field tending to zero $(H\\to 0, N,M\\to\\infty)$ at arbitrary temperature is also considered $(T\\neq 0)$.", "revisions": [ { "version": "v1", "updated": "1997-10-20T17:16:19.000Z" } ], "analyses": { "keywords": [ "external magnetic field", "external field", "lenz-ising-onsager problem", "soluble problem", "2d ising model" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. E" }, "note": { "typesetting": "RevTeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }