{ "id": "1710.07608", "version": "v1", "published": "2017-10-20T17:04:50.000Z", "updated": "2017-10-20T17:04:50.000Z", "title": "Translation-Invariant Gibbs States of Ising model: General Setting", "authors": [ "Aran Raoufi" ], "categories": [ "math.PR", "math-ph", "math.MP" ], "abstract": "We prove that at any inverse temperature $\\beta$ and on any transitive amenable graph, the automorphism-invariant Gibbs states of the ferromagnetic Ising model are convex combinations of the plus and minus states. This is obtained for a general class of interactions, that is automorphism-invariant and irreducible coupling constants. The proof uses the random current representation of the Ising model. The result is novel when the graph is not $\\mathbb{Z}^d$, or when the graph is $\\mathbb{Z}^d$ but endowed with infinite-range interactions, or even $\\mathbb{Z}^2$ with finite-range interactions. Among the corollaries of this result, we can list continuity of the magnetization at any non-critical temperature, the differentiability of the free energy, and the uniqueness of FK-Ising infinite-volume measures.", "revisions": [ { "version": "v1", "updated": "2017-10-20T17:04:50.000Z" } ], "analyses": { "keywords": [ "translation-invariant gibbs states", "general setting", "automorphism-invariant gibbs states", "interactions", "random current representation" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }