{ "id": "1701.04482", "version": "v1", "published": "2017-01-16T22:53:21.000Z", "updated": "2017-01-16T22:53:21.000Z", "title": "Asymptotic behaviour of ground states for mixtures of ferromagnetic and antiferromagnetic interactions in a dilute regime", "authors": [ "Andrea Braides", "Andrea Causin", "Andrey Piatnitski", "Margherita Solci" ], "categories": [ "math.PR", "math-ph", "math.AP", "math.MP" ], "abstract": "We consider randomly distributed mixtures of bonds of ferromagnetic and antiferromagnetic type in a two-dimensional square lattice with probability $1-p$ and $p$, respectively, according to an i.i.d. random variable. We study minimizers of the corresponding nearest-neighbour spin energy on large domains in ${\\mathbb Z}^2$. We prove that there exists $p_0$ such that for $p\\le p_0$ such minimizers are characterized by a majority phase; i.e., they take identically the value $1$ or $-1$ except for small disconnected sets. A deterministic analogue is also proved.", "revisions": [ { "version": "v1", "updated": "2017-01-16T22:53:21.000Z" } ], "analyses": { "keywords": [ "ground states", "antiferromagnetic interactions", "dilute regime", "asymptotic behaviour", "two-dimensional square lattice" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }