Journal
FORTSCHRITTE DER PHYSIK-PROGRESS OF PHYSICS
Volume 60, Issue 11-12, Pages 1123-1149Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/prop.201200078
Keywords
Double field theory; gauged supergravities; flux compactifications
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Funding
- Netherlands Organisation for Scientific Research (NWO)
- ERC [259133]
- Spanish Ministry of Education FPU [AP2008-00919]
- European Research Council (ERC) [259133] Funding Source: European Research Council (ERC)
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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. (C) 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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