{ "id": "1603.08975", "version": "v1", "published": "2016-03-29T21:39:10.000Z", "updated": "2016-03-29T21:39:10.000Z", "title": "Convergence to the Stochastic Burgers Equation from a degenerate microscopic dynamics", "authors": [ "Oriane Blondel", "Patricia Gonçalves", "Marielle Simon" ], "categories": [ "math.PR" ], "abstract": "In this paper we prove the convergence to the stochastic Burgers equation from one-dimensional interacting particle systems, whose dynamics allow the degeneracy of the jump rates. To this aim, we provide a new proof of the second order Boltzmann-Gibbs principle introduced in [Gon\\c{c}alves, Jara 2014]. The main technical difficulty is that our models exhibit configurations that do not evolve under the dynamics - the blocked configurations - and are locally non-ergodic. Our proof does not impose any knowledge on the spectral gap for the microscopic models. Instead, it relies on the fact that, under the equilibrium measure, the probability to find a blocked configuration in a finite box is exponentially small in the size of the box. Then, a dynamical mechanism allows to exchange particles even when the jump rate for the direct exchange is zero.", "revisions": [ { "version": "v1", "updated": "2016-03-29T21:39:10.000Z" } ], "analyses": { "keywords": [ "stochastic burgers equation", "degenerate microscopic dynamics", "convergence", "jump rate", "second order boltzmann-gibbs principle" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2016arXiv160308975B" } } }