title: F-Theory and the Landscape of Intersecting D7-Branes
creator: Braun, Andreas
subject: ddc-530
subject: 530 Physics
description: In this work, the moduli of D7-branes in type IIB orientifold compactifications and their stabilization by fluxes is studied from the perspective of F-theory. In F-theory, the moduli of the D7-branes and the moduli of the orientifold are unified in the moduli space of an elliptic Calabi-Yau manifold. This makes it possible to study flux the stabilization  of D7-branes in an elegant manner. To answer phenomenological questions, one has to translate the deformations of the elliptic Calabi-Yau  manifold of F-theory back to the positions and the shape of the D7-branes. We address this problem by constructing the  homology cycles that are relevant for the deformations of the elliptic Calabi-Yau manifold. We show the viability of our  approach for the case of elliptic two- and three-folds. Furthermore, we discuss a consistency conditions related to the  intersections between D7-branes and orientifold planes which is automatically fulfilled in F-theory. Finally, we use our  results to study the flux stabilization of D7-branes on the orientifold $K3times T^2/Z_2$ using F-theory on $K3times K3$. In this context, we derive conditions on the fluxes to stabilize a given configuration of D7-branes. 
date: 2009
type: Dissertation
type: info:eu-repo/semantics/doctoralThesis
type: NonPeerReviewed
format: application/pdf
identifier: https://archiv.ub.uni-heidelberg.de/volltextserverhttps://archiv.ub.uni-heidelberg.de/volltextserver/10436/1/dr.pdf
identifier: DOI:10.11588/heidok.00010436
identifier: urn:nbn:de:bsz:16-opus-104361
identifier:   Braun, Andreas  (2009) F-Theory and the Landscape of Intersecting D7-Branes.  [Dissertation]     
relation: https://archiv.ub.uni-heidelberg.de/volltextserver/10436/
rights: info:eu-repo/semantics/openAccess
rights: http://archiv.ub.uni-heidelberg.de/volltextserver/help/license_urhg.html
language: eng