Four-dimensional string compactifications with D-branes, orientifolds and fluxes
- R. Blumenhagen, B. Kors, D. Lust, S. Stieberger
- Mathematics
- 31 October 2006
String loop corrections to Kähler potentials in orientifolds
We determine one-loop string corrections to Kahler potentials in type-IIB orientifold compactifications with either = 1 or = 2 supersymmetry, including D-brane moduli, by evaluating string scattering…
Noncommutative compactifications of type I strings on tori with magnetic background flux
- R. Blumenhagen, L. Goerlich, B. Kors, D. Lust
- Physics
- 4 July 2000
Weconstructsix-andfour-dimensionaltoroidalcompacticationsofthe type-IstringwithmagneticfluxontheD-branes. Theopenstringsinthisbackground probe a noncommutative internal geometry. Phenomenologically…
Loop corrections to volume moduli and inflation in string theory
The recent progress in embedding inflation in string theory has made it clear that the problem of moduli stabilization cannot be ignored in this context. In many models a special role is played by…
Orientifolds of K3 and Calabi-Yau manifolds with intersecting D-branes
- R. Blumenhagen, V. Braun, B. Kors, D. Lust
- Mathematics
- 5 June 2002
We investigate orientifolds of type II string theory on K3 and Calabi-Yau 3-folds with intersecting D-branes wrapping special lagrangian cycles. We determine quite generically the chiral massless…
Type I Strings with F- and B-Flux
- R. Blumenhagen, B. Kors, D. Lust
- Physics
- 18 December 2000
We present non-supersymmetric toroidal compactifications of type-I string theory with both constant background NSNS two-form flux and non-trivial magnetic flux on the various D9-branes. The…
The Standard Model from stable intersecting brane world orbifolds
- R. Blumenhagen, B. Kors, D. Lust, T. Ott
- Physics
- 17 July 2001
Supersymmetric 4D orientifolds of Type IIA with D6-branes at angles
- R. Blumenhagen, L. Goerlich, B. Kors
- Mathematics
- 21 December 1999
We study a certain class of four-dimensional = 1 supersymmetric orientifolds for which the world-sheet parity transformation is combined with a complex conjugation in the compact directions. We…
On Volume Stabilization by Quantum Corrections
We discuss prospects for stabilizing the volume modulus of N = 1 supersymmetric type IIB orientifold compactifications using only perturbative corrections to the K¨ahler potential. Concretely, we…
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