{ "id": "1101.4765", "version": "v2", "published": "2011-01-25T10:38:36.000Z", "updated": "2011-06-15T10:42:29.000Z", "title": "Binary jumps in continuum. I. Equilibrium processes and their scaling limits", "authors": [ "Dmitri L. Finkelshtein", "Yuri G. Kondratiev", "Oleksandr V. Kutoviy", "Eugene Lytvynov" ], "categories": [ "math.PR" ], "abstract": "Let $\\Gamma$ denote the space of all locally finite subsets (configurations) in $R^d$. A stochastic dynamics of binary jumps in continuum is a Markov process on $\\Gamma$ in which pairs of particles simultaneously hop over $R^d$. In this paper, we study an equilibrium dynamics of binary jumps for which a Poisson measure is a symmetrizing (and hence invariant) measure. The existence and uniqueness of the corresponding stochastic dynamics are shown. We next prove the main result of this paper: a big class of dynamics of binary jumps converge, in a diffusive scaling limit, to a dynamics of interacting Brownian particles. We also study another scaling limit, which leads us to a spatial birth-and-death process in continuum. A remarkable property of the limiting dynamics is that its generator possesses a spectral gap, a property which is hopeless to expect from the initial dynamics of binary jumps.", "revisions": [ { "version": "v2", "updated": "2011-06-15T10:42:29.000Z" } ], "analyses": { "subjects": [ "02.50.Ga", "05.40.Jc" ], "keywords": [ "scaling limit", "equilibrium processes", "stochastic dynamics", "binary jumps converge", "spatial birth-and-death process" ], "tags": [ "journal article" ], "publication": { "doi": "10.1063/1.3601118", "journal": "Journal of Mathematical Physics", "year": 2011, "month": "Jun", "volume": 52, "number": 6, "pages": 3304 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011JMP....52f3304F" } } }