{ "id": "1109.2776", "version": "v2", "published": "2011-09-13T13:16:22.000Z", "updated": "2013-05-20T19:19:28.000Z", "title": "Tunneling of the Kawasaki dynamics at low temperatures in two dimensions", "authors": [ "J. Beltrán", "C. Landim" ], "categories": [ "math.PR", "math-ph", "math.MP" ], "abstract": "Consider a lattice gas evolving according to the conservative Kawasaki dynamics at inverse temperature $\\beta$ on a two dimensional torus $\\Lambda_L=\\{0,..., L-1\\}^2$ . We prove the tunneling behavior of the process among the states of minimal energy. More precisely, assume that there are $n^2\\ll L$ particles and that the initial state is the configuration in which all sites of the square $\\mb x + \\{0,..., n-1\\}^2$ are occupied. We show that in the time scale $e^{2\\beta}$ the process is close to a Markov process on $\\Lambda_L$ which jumps from any site $\\mb x$ to any other site $\\mb y\\not =\\mb x$ at a strictly positive rate which can be expressed in terms of the jump rates of simple random walks.", "revisions": [ { "version": "v2", "updated": "2013-05-20T19:19:28.000Z" } ], "analyses": { "keywords": [ "low temperatures", "dimensions", "simple random walks", "lattice gas", "conservative kawasaki dynamics" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1109.2776B" } } }