Comments on N = 4 supergravity gaugings

by Prezas, N. (CERN)

Tuesday 12 Dec 2006, 14:00 → 15:00 Europe/Zurich

TH Auditorium (CERN)

I will discuss some recent progress in the understanding of N = 4 supergravity gaugings. The most general theory of this type has been constructed using the formalism of embedding tensors. We analyse some simple examples of the gauge algebras that can appear while we clarify several aspects concerning the embedding of these theories in string theory. In particular, a simple generalization of the original Scherk-Schwarz reduction yields the most general such theory that admits a geometric description in higher dimensions.