Algebraic structure in renormalization of combinatorially non-local field theories
Basic data for this talk
Type of talk: scientific Talk
Name der Vortragenden: Thürigen, Johannes
Date of talk: 10/05/2021
Talk language: English
URL of slides: https://www2.mathematik.hu-berlin.de/~kreimer/seminars/
Information about the event
Name of the event: Research seminar Structure of Local Quantum Field Theories
Event location: Humboldt-Universität zu Berlin
Event website: https://www2.mathematik.hu-berlin.de/~kreimer/seminars/
Abstract
Generalizing the point-like interactions of standard ``local'' QFT to combinatorially non-local interactions preserves locality in the sense of renormalization. The crucial difference is that residues come with an additional graph structure. Still, the standard Hopf-algebraic structure of (perturbative) renormalization applies. I show how this facilitates renormalization in the case of the BPHZ momentum scheme and give an outlook on non-perturbative applications.Keywords: Hopf Algebra; Quantum Field Theory; Combinatorial Non-locality
Speakers from the University of Münster
| Thürigen, Johannes |
Publications referred to in the talk
Thürigen, J (2021) In: Symmetry, Integrability and Geometry: Methods and Applications, 17, 094. doi:10.3842/SIGMA.2021.094 Research article (journal) | Peer reviewed | Published |