Colloquium: Spectral Methods in Quantum Field Theory (Department of Physics)

The Department of Physics presents a Colloquium themed Spectral Methods in Quantum Field Theory. The speaker is Prof H Weigel of the Department of Physics at Stellenbosch University.
“In this talk I review the use of spectral methods to investigate field configurations that evade perturbative treatment in quantum field theory. A genuine feature of these methods is the possibility to implement the renormalization conditions from the perturbative sector of the field theory that describes the interaction of free particles. As applications I discuss in more detail the renowned Casimir-effect for Dirichlet boundary conditions, the formation of a soliton by quantum effects in a chiral theory in one space dimension, and QED flux tubes,” Prof. Weigel said.
Date: 25 August
Time: 12h00
Venue: Merensky Building, Dept of Physics, Room 1011
Contact Prof. KK Müller-Nedebock at tel 021 808 3386 or via e-mail at kkmn@physics.sun.ac.za for more information.