Berlin 2015 – wissenschaftliches Programm

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MP: Fachverband Theoretische und Mathematische Grundlagen der Physik

MP 15: HV Zahn

MP 15.1: Hauptvortrag

Donnerstag, 19. März 2015, 10:35–11:15, HFT-FT 101

Applications of local gauge covariance: Anomalies and QED in external potentials — •Jochen Zahn — Universität Leipzig, Institut für Theoretische Physik, Brüderstr. 16, 04103 Leipzig

The framework of locally covariant field theory proved extremely fruitful for QFT on curved space-times. It can be straightforwardly generalized to more general non trivial background fields, in particular gauge connections. I will present two applications of this framework. The first is an elementary computation of the chiral anomalies, directly on Lorentzian space-times. The second is QED in external potentials, where I compare the locally covariant definition of the current to other definitions and consider it in concrete cases.