{ "id": "0910.5158", "version": "v2", "published": "2009-10-27T16:19:16.000Z", "updated": "2010-07-08T10:41:01.000Z", "title": "Noncommutative geometry, gauge theory and renormalization", "authors": [ "Axel de Goursac" ], "comment": "159 pages, 14 figures, PhD thesis, v2: revised version", "journal": "Verlag Dr Muller (2010)", "categories": [ "math-ph", "hep-th", "math.MP", "math.OA", "math.QA", "math.RA" ], "abstract": "Nowadays, noncommutative geometry is a growing domain of mathematics, which can appear as a promising framework for modern physics. Quantum field theories on \"noncommutative spaces\" are indeed much investigated, and suffer from a new type of divergence called the ultraviolet-infrared mixing. However, this problem has recently been solved by H. Grosse and R. Wulkenhaar by adding to the action of a noncommutative scalar model a harmonic term, which renders it renormalizable. One aim of this thesis is the extension of this procedure to gauge theories on the Moyal space. Indeed, we have introduced a new noncommutative gauge theory, strongly related to the Grosse-Wulkenhaar model, and candidate to renormalizability. We have then studied the most important properties of this action, and in particular its vacuum configurations. Finally, we give a mathematical interpretation of this new action in terms of a derivation-based differential calculus associated to a superalgebra. This work contains among the results of this PhD, an introduction to noncommutative geometry, an introduction to epsilon-graded algebras, and an introduction to renormalization of scalar (wilsonian and BPHZ point of view) and gauge quantum field theories.", "revisions": [ { "version": "v2", "updated": "2010-07-08T10:41:01.000Z" } ], "analyses": { "keywords": [ "noncommutative geometry", "renormalization", "gauge quantum field theories", "introduction", "noncommutative scalar model" ], "tags": [ "dissertation", "journal article" ], "publication": { "journal": "Ph.D. Thesis", "year": 2009, "month": "Oct" }, "note": { "typesetting": "TeX", "pages": 159, "language": "en", "license": "arXiv", "status": "editable", "inspire": 835811, "adsabs": "2009PhDT.......198D" } } }