2012/03/31 by G. Dibitetto, J. J. Fernandez-Melgarejo, D. Marques +1 · 1 citation
Physics and Astronomy · #hep-th
paper · pdf · doi:10.1002/prop.201200078
published as Fortschr. Phys. 60, (2012), No. 11, 1123 · 39 pages, 1 figure, 6 tables; v2: refs added, published version
arxiv created 2012/04/27 · arxiv updated 2012/10/31
Compactifications in duality covariant constructions such as generalised geometry and double field theory have proven to be suitable frameworks to reproduce gauged supergravities containing non-geometric fluxes. However, it is a priori unclear whether these approaches only provide a reformulation of old results, or also contain new physics. To address this question, we classify the T- and U-duality orbits of gaugings of (half-)maximal supergravities in dimensions seven and higher. It turns out that all orbits have a geometric supergravity origin in the maximal case, while there are non-geometric orbits in the half-maximal case. We show how the latter are obtained from compactifications of double field theory.