{ "id": "math-ph/0111032", "version": "v3", "published": "2001-11-17T23:25:46.000Z", "updated": "2003-07-26T09:48:35.000Z", "title": "Asymptotic Completeness for Compton Scattering", "authors": [ "J. Froehlich", "M. Griesemer", "B. Schlein" ], "comment": "gap of previous version closed, large parts rewritten, more general results and more comprehensive exposition. 64 pages, 3 figures", "categories": [ "math-ph", "math.MP" ], "abstract": "Scattering in a model of a massive quantum-mechanical particle, an ``electron'', interacting with massless, relativistic bosons, ``photons'', is studied. The interaction term in the Hamiltonian of our model describes emission and absorption of ``photons'' by the ``electron''; but ``electron-positron'' pair production is suppressed. An ultraviolet cutoff and an (arbitrarily small, but fixed) infrared cutoff are imposed on the interaction term. In a range of energies where the propagation speed of the dressed ``electron'' is strictly smaller than the speed of light, unitarity of the scattering matrix is proven, provided the coupling constant is small enough; (asymptotic completeness of Compton scattering). The proof combines a construction of dressed one--electron states with propagation estimates for the ``electron'' and the ``photons''.", "revisions": [ { "version": "v3", "updated": "2003-07-26T09:48:35.000Z" } ], "analyses": { "subjects": [ "81V10", "81U99" ], "keywords": [ "asymptotic completeness", "compton scattering", "interaction term", "dressed one-electron states", "ultraviolet cutoff" ], "note": { "typesetting": "TeX", "pages": 64, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2001math.ph..11032F" } } }