Forthcoming seminars:

Place: UHK, briefing room Nr 74060 of the Faculty of Science (the fourth floor of the S-building)
Date: Friday, April 12th, 2024
Time: 13:30 (duration: 40 minutes + questions)
Speaker: Matěj Tušek, Czech Technical University in Prague
Title: Echoes of the Klein paradox in approximations of the relativistic point interactions
Abstract: When the one-dimensional relativistic point interactions are approximated by scaled regular potentials, the coupling constants have to be renormalized in the limit. This effect was observed by P. Šeba in 1989 for the first time in the paper called "Klein's Paradox and the Relativistic Point Interaction" (Lett. Math. Phys. 18). However, the paper does not contain any explicit explanation of a relation between the Klein paradox and the renormalization of the coupling constants. The aim of this (hopefully) easy to follow talk is to trace such a relation.
Remark: The seminar will be in the hybrid form, you can use this zoom link.