Renormalization and C*-algebras

Klaus Fredenhagen (U Hamburg)

Oct 12. 2020, 11:15 — 12:00

Renormalized quantum field theory is usually formulated in terms of formal power series with coefficients in algebras of unbounded operators. We investigate the possibility to formulate it instead in terms of unitary elements of a C*-algebra which is defined in terms of relations which reflect basic properties of the theory, including the condition of causality and the Lagrangian which determines the dynamics. The talk is based on joint work with Detlev Buchholz.    

Further Information
ESI Boltzmann Lecture Hall
Associated Event:
Higher Structures Emerging from Renormalisation - partially postponed (Online Workshop)
Pierre Clavier (U of Haut-Alsace)
Kurusch Ebrahimi-Fard (NTNU, Trondheim)
Peter K. Friz (TU Berlin)
Harald Grosse (U of Vienna)
Dominique Manchon (U Clerment Auvergne)
Sylvie Paycha (U of Potsdam)
Sylke Pfeiffer (U of Potsdam)