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Exceptional flux compactifications

By Giuseppe Dibitetto, Adolfo Guarino and Diederik Roest


We consider type II (non-)geometric flux backgrounds in the absence of brane sources, and construct their explicit embedding into maximal gauged D = 4 supergravity. This enables one to investigate the critical points, mass spectra and gauge groups of such backgrounds. We focus on a class of type IIA geometric vacua and find a novel, nonsupersymmetric and stable AdS vacuum in maximal supergravity with a non-semisimple gauge group. Our construction relies on a non-trivial mapping between SL(2) × SO(6, 6) fluxes, SU(8) mass spectra and gaugings of E7(7) subgroups.

Year: 2012
OAI identifier: oai:ub.rug.nl:dbi/50cb3c3e9892f
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