{ "id": "2205.13204", "version": "v1", "published": "2022-05-26T07:44:02.000Z", "updated": "2022-05-26T07:44:02.000Z", "title": "Scattering Theory in Quantum Mechanical Problems", "authors": [ "Dmitri Yafaev" ], "comment": "A lecture at the les Houches school of physics, September, 2021", "categories": [ "math-ph", "math.MP", "math.SP" ], "abstract": "The aim of the lecture is to briefly describe the mathematical background of scattering theory for two- and three-particle quantum systems. We discuss basic objects of the theory: wave and scattering operators and the corresponding scattering matrix and illustrate them on the example of the Schr\\\"odinger equation. Our goal is to present time-dependent and stationary approaches and to describe the underlying mathematical methods. We also give a sketch of scattering theory for three interacting quantum particles including a difficult problem of the asymptotic completeness of scattering channels. Along with traditional results, we discuss new scattering channels arising for long-range pair interactions.", "revisions": [ { "version": "v1", "updated": "2022-05-26T07:44:02.000Z" } ], "analyses": { "subjects": [ "35P25", "47A40", "81U05", "81U10" ], "keywords": [ "scattering theory", "quantum mechanical problems", "three-particle quantum systems", "scattering channels", "long-range pair interactions" ], "tags": [ "lecture notes" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }