Non-unimodular reductions and N = 4 gauged supergravities

Details Non-unimodular reductions and N = 4 gauged supergravities Non-unimodular reductions and N = 4 gauged supergravities

2007-12-27

arxiv.org/abs/0712.4147v1

Fortsch.Phys.56:752-760,2008

Physics

High Energy Physics

High Energy Physics - Theory

15 pages

Scientific paper

10.1002/prop.200810556

We analyze the class of four-dimensional N = 4 supergravities obtained by gauging the axionic shift and axionic rescaling symmetries. These theories are formulated with the machinery of embedding tensors and shown to be deducible from higher dimensions using a Scherk--Schwarz reduction with a twist by a non-compact symmetry. This allows to evade the usual unimodularity requirement and completes the dictionary between heterotic gaugings and fluxes, at least for the "geometric sector".

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