{ "id": "1410.4814", "version": "v1", "published": "2014-10-17T18:21:41.000Z", "updated": "2014-10-17T18:21:41.000Z", "title": "Conditioned, quasi-stationary, restricted measures and escape from metastable states", "authors": [ "Roberto Fernandez", "Francesco Manzo", "Francesca Nardi", "Elisabetta Scoppola", "Julien Sohier" ], "comment": "39 pages", "categories": [ "math.PR" ], "abstract": "We study the asymptotic hitting time $\\tau^{(n)}$ of a family of Markov processes $X^{(n)}$ to a target set $G^{(n)}$ when the process starts from a trap defined by very general properties. We give an explicit description of the law of $X^{(n)}$ conditioned to stay within the trap, and from this we deduce the exponential distribution of $\\tau^{(n)}$. Our approach is very broad ---it does not require reversibility, the target $G$ does not need to be a rare event, and the traps and the limit on $n$ can be of very general nature--- and leads to explicit bounds on the deviations of $\\tau^{(n)}$ from exponentially. We provide two non trivial examples to which our techniques directly apply.", "revisions": [ { "version": "v1", "updated": "2014-10-17T18:21:41.000Z" } ], "analyses": { "subjects": [ "60J27", "60J28", "82C05" ], "keywords": [ "restricted measures", "metastable states", "quasi-stationary", "non trivial examples" ], "note": { "typesetting": "TeX", "pages": 39, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1410.4814F" } } }