{ "id": "0705.3189", "version": "v1", "published": "2007-05-22T15:17:14.000Z", "updated": "2007-05-22T15:17:14.000Z", "title": "Polariton-polariton scattering: exact results through a novel approach", "authors": [ "M. Combescot", "M. -A. Dupertuis", "O. Betbeder-Matibet" ], "comment": "To be published in Europhysics Letters", "doi": "10.1209/0295-5075/79/17001", "categories": [ "cond-mat.mes-hall" ], "abstract": "We present a fully microscopic approach to the transition rate of two exciton-photon polaritons. The non-trivial consequences of the polariton composite nature -- here treated exactly through a development of our composite-exciton many-body theory -- lead to results noticeably different from the ones of the conventional approaches in which polaritons are mapped into elementary bosons. Our work reveals an appealing fundamental scattering which corresponds to a photon-assisted exchange -- in the absence of Coulomb process. This scattering being dominant when one of the scattered polaritons has a strong photon character, it should be directly accessible to experiment. In the case of microcavity polaritons, it produces a significant enhancement of the polariton transition rate when compared to the one coming from Coulomb interaction. This paper also contains the crucial tools to securely tackle the many-body physics of polaritons, in particular towards its possible BEC.", "revisions": [ { "version": "v1", "updated": "2007-05-22T15:17:14.000Z" } ], "analyses": { "keywords": [ "exact results", "novel approach", "polariton-polariton scattering", "composite-exciton many-body theory", "polariton composite nature" ], "tags": [ "journal article" ], "publication": { "journal": "EPL (Europhysics Letters)", "year": 2007, "month": "Jul", "volume": 79, "number": 1, "pages": 17001 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2007EL.....7917001C" } } }