Exceptional Flux Compactifications

A Coimbra; A Diffon Le; A Saltman; Adolfo Guarino; B Carlos de; B Carlos de; B Wit de; B Wit de; B Wit de; B Wit de; C Angelantonj; C Angelantonj; C Caviezel; C Caviezel; C Hull; C Hull; C Hull; C Hull; C Hull; CM Hull; D Andriot; D Cassani; D Geissbuhler; D Roest; D Roest; DC Thompson; Diederik Roest; DS Berman; DS Berman; E Cremmer; E Silverstein; G Aldazabal; G Aldazabal; G Aldazabal; G Aldazabal; G Aldazabal; G Dall’Agata; G Dall’Agata; G Dall’Agata; G Dibitetto; G Dibitetto; G Dibitetto; G Villadoro; Giuseppe Dibitetto; H Samtleben; I Jeon; J Schon; J Shelton; J-P Derendinger; J-P Derendinger; M Duff; M Duff; M Graña; M Graña; M Graña; M Roo de; MP Hertzberg; N Bobev; N Halmagyi; N Warner; N Warner; O DeWolfe; O Hohm; O Hohm; PG Camara; PP Pacheco; S Kachru; SB Giddings; SS Haque; T Fischbacher; UH Danielsson; UH Danielsson

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Exceptional Flux Compactifications

Abstract

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, non-supersymmetric and stable AdS vacuum in maximal supergravity with a non-semisimple gauge group. Our construction relies on a non-trivial mapping between SL(2) x SO(6,6) fluxes, SU(8) mass spectra and gaugings of E7(7) subgroups.Comment: 51 pages, 2 figures and 4 tables. v3: change of SO(6,6) spinorial conventions, published versio