On Type IIB moduli stabilization and N = 4, 8 supergravities.

GERARDO ALDAZABAL; DIEGO MARQUES; CARMEN NÚÑEZ; JOSÉ ROSABAL

NUCLEAR PHYSICS B

ELSEVIER SCIENCE BV

Lugar: Amsterdam; Año: 2011 vol. 849 p. 80 - 111

0550-3213

We analyze D = 4 compactifications of Type IIB theory with generic, geometric and  non-geometric, dual fluxes turned on. In particular, we study N = 1 toroidal orbifold  compactifications that admit an embedding of the untwisted sector into gauged N = 4, 8 supergravities. Truncations, spontaneous breaking of supersymmetry and the inclusion of sources are discussed. The algebraic identities  satisfied by the supergravity gaugings are used to implement the full set of consistency constraints on the background fluxes. This allows to perform a generic study of N = 1 vacua and identify large  regions of the parameter space that do not admit complete moduli stabilization. Illustrative examples of AdS and Minkowski vacua are presented.