{ "id": "0708.2152", "version": "v4", "published": "2007-08-16T08:14:32.000Z", "updated": "2015-06-29T08:18:12.000Z", "title": "Coupling, concentration inequalities and stochastic dynamics", "authors": [ "Jean René Chazottes", "Pierre Collet", "Frank Redig" ], "comment": "33 pages, J. Math. Phys. 49 (2008). A typo in inequality (24) was corrected", "categories": [ "math.PR", "math-ph", "math.MP" ], "abstract": "In the context of interacting particle systems, we study the influence of the action of the semigroup on the concentration property of Lipschitz functions. As an application, this gives a new approach to estimate the relaxation speed to equilibrium of interacting particle systems. We illustrate our approach in a variety of examples for which we obtain several new results with short and non-technical proofs. These examples include the symmetric and asymmetric exclusion process and high-temperature spin-flip dynamics (\"Glauber dynamics\"). We also give a new proof of the Poincar\\'e inequality, based on coupling, in the context of one-dimensional Gibbs measures. In particular, we cover the case of polynomially decaying potentials, where the log-Sobolev inequality does not hold.", "revisions": [ { "version": "v3", "updated": "2008-09-05T09:36:38.000Z", "comment": "33 pages, one figure; minor corrections done; to appear in J. Math. Phys", "journal": null, "doi": null }, { "version": "v4", "updated": "2015-06-29T08:18:12.000Z" } ], "analyses": { "subjects": [ "60K35", "82C22" ], "keywords": [ "stochastic dynamics", "concentration inequalities", "interacting particle systems", "one-dimensional gibbs measures", "high-temperature spin-flip dynamics" ], "note": { "typesetting": "TeX", "pages": 33, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2007arXiv0708.2152R" } } }