{ "id": "math/0410183", "version": "v1", "published": "2004-10-06T19:58:56.000Z", "updated": "2004-10-06T19:58:56.000Z", "title": "Superdiffusivity of occupation-time variance in 2-dimensional asymmetric processes with density 1/2", "authors": [ "Sunder Sethuraman" ], "comment": "13 pages", "categories": [ "math.PR" ], "abstract": "We compute that the growth of the origin occupation-time variance up to time t in dimension d=2 with respect to asymmetric simple exclusion in equilibrium with density 1/2 is in a certain sense at least t(log(log t)) for general rates, and at least t(log t)^{1/2} for rates which are asymmetric only in the direction of one of the axes. These estimates are consistent with conjectures with respect to the transition function and variance of 'second-class' particles.", "revisions": [ { "version": "v1", "updated": "2004-10-06T19:58:56.000Z" } ], "analyses": { "subjects": [ "60K35" ], "keywords": [ "asymmetric processes", "superdiffusivity", "origin occupation-time variance", "asymmetric simple exclusion", "general rates" ], "note": { "typesetting": "TeX", "pages": 13, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2004math.....10183S" } } }