{ "id": "0709.3713", "version": "v2", "published": "2007-09-24T08:57:34.000Z", "updated": "2009-03-06T13:25:54.000Z", "title": "Existence, uniqueness and approximation for stochastic Schrodinger equation: the Poisson case", "authors": [ "Clement Pellegrini" ], "comment": "35 pages", "categories": [ "math.PR", "math-ph", "math.MP", "quant-ph" ], "abstract": "In quantum physics, recent investigations deal with the so-called \"quantum trajectory\" theory. Heuristic rules are usually used to give rise to \"stochastic Schrodinger equations\" which are stochastic differential equations of non-usual type describing the physical models. These equations pose tedious problems in terms of mathematical justification: notion of solution, existence, uniqueness, justification... In this article, we concentrate on a particular case: the Poisson case. Random measure theory is used in order to give rigorous sense to such equations. We prove existence and uniqueness of a solution for the associated stochastic equation. Furthermore, the stochastic model is physically justified by proving that the solution can be obtained as a limit of a concrete discrete time physical model.", "revisions": [ { "version": "v2", "updated": "2009-03-06T13:25:54.000Z" } ], "analyses": { "keywords": [ "stochastic schrodinger equation", "poisson case", "uniqueness", "approximation", "concrete discrete time physical model" ], "note": { "typesetting": "TeX", "pages": 35, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2007arXiv0709.3713P" } } }