The effective action of Double Field Theory

WALTER H. BARON

Hamburgo

Congreso; International School On Strings And Fundamental Physics; 2012

Deutsches Elektronen-Synchrotron (DESY)-Theory Group

We perform a generalized Scherk-Schwarz dimensional reduction of Double Field Theoryon a twisted double torus. The four dimensional effective action is shown to exactlyreproduce the bosonic electric sector of gauged N=4 supergravity. We present explicitexpressions for the gaugings in terms of the twists, and analyze the associated stringbackgrounds. This framework provides a higher dimensional origin of the gaugings interms of generalized fluxes.