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We consider type II string theory in space-time backgrounds which admit eight supercharges. Such backgrounds are characterized by the existence of a (generically nonintegrable) generalized SU (3)×SU… (More)
We characterize N = 1 vacua of type II theories in terms of generalized complex structure on the internal manifold M . The structure group of T (M)⊕T (M) being SU(3)×SU(3) implies the existence of… (More)
This paper analyses type II string theories in backgrounds which admit an SU (3)×SU (3) structure. Such backgrounds are designed to linearly realize eight out of the original 32 supercharges and as a… (More)
We show that the supersymmetry transformations for type II string theories on six-manifolds can be written as differential conditions on a pair of pure spinors, the exponentiated Kähler form e and… (More)
- Mariana Graña
- 2005
We present a pedagogical overview of flux compactifications in string theory, from the basic ideas to the most recent developments. We concentrate on closed string fluxes in type II theories. We… (More)
We exhibit a one-parameter family of regular supersymmetric solutions of type IIB theory that interpolates between Klebanov-Strassler (KS) and Maldacena-Nuñez (MN). The solution is obtained by… (More)
We perform a systematic search for N = 1 Minkowski vacua of type II string theories on compact six–dimensional parallelizable nil– and solvmanifolds (quotients of six–dimensional nilpotent and… (More)
We consider configurations of D7-branes and whole and fractional D3-branes with N = 2 supersymmetry. On the supergravity side these have a warp factor, three-form flux and a nonconstant dilaton. We… (More)
- Mariana Graña
- 2000
We consider warped type IIB supergravity solutions with three-form flux and N = 1 supersymmetry, which arise as the supergravity duals of confining gauge theories. We first work in a perturbation… (More)