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arXiv · hep-th/0203206

Gauging of Flat Groups in Four Dimensional Supergravity

L. Andrianopoli·R. D'Auria·S. Ferrara·M. A. Lledo
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Abstract

We show that N=8 spontaneously broken supergravity in four dimensions obtained by Scherk-Schwarz generalized dimensional reduction can be obtained from a pure four dimensional perspective by gauging a suitable electric subgroup of E_{7,7}. Owing to the fact that there are non isomorphic choices of maximal electric subgroups of the U-duality group their gaugings give rise to inequivalent theories. This in particular shows that the Scherk-Schwarz gaugings do not fall in previous classifications of possible gauged N=8 supergravities. Gauging of flat groups appear in many examples of string compactifications in presence of brane fluxes.

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L. Andrianopoli, R. D'Auria, S. Ferrara, M. A. Lledo. 2002-07-05. Gauging of Flat Groups in Four Dimensional Supergravity. https://doi.org/10.1088/1126-6708%2F2002%2F07%2F010

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