Supersymmetric D-branes on flux backgrounds

Abstract

Several aspects concerning the physics of D-branes in Type II flux compactifications preserving minimal N=1 supersymmetry in four dimensions are considered. It is shown how these vacua are completely characterized in terms of properly defined generalized calibrations for D-branes and the relation with Generalized Complex Geometry is discussed. General expressions for superpotentials and D-terms associated with the N=1 four-dimensional description of space-time filling D-branes are presented. The massless spectrum of calibrated D-branes can be characterized in terms of cohomology groups of a differential complex canonically induced on the D-branes by the underlying generalized complex structure.

9 pages; contribution to the proceedings of the RTN project `Constituents, Fundamental Forces and Symmetries of the Universe' conference in Napoli, October 9 - 13, 2006; (v2) references added

References in corpus (2)

• Deformations of calibrated D-branes in flux generalized complex manifolds
• Topological sigma-models with H-flux and twisted generalized complex manifolds

Cited by in corpus (3)

• D-brane networks in flux vacua, generalized cycles and calibrations
• Warped generalized geometry compactifications, effective theories and non-perturbative effects
• Supersymmetric D-branes on SU(2) structure manifolds