9 research outputs found
Moduli Stabilization in Type IIB Orientifolds (I)
We discuss flux quantization and moduli stabilization in toroidal type IIB
Z_N - or Z_N x Z_M -orientifolds, focusing mainly on their orbifold limits.
After presenting a detailed discussion of their moduli spaces and effective
actions, we study the supersymmetric vacuum structure of these models and
derive criteria for the existence of stable minima. Furthermore, we briefly
investigate the models away from their orbifold points and comment on the
microscopic origin of their non-perturbative superpotentials.Comment: 97 pages + 2 figs, harvma
MSSM with Soft SUSY Breaking Terms from D7-Branes with Fluxes
We discuss the structure of the soft supersymmetry breaking terms in a MSSM
like model, which can be derived from D7-branes with chiral matter fields from
2-form f-fluxes and supersymmetry breaking from 3-form G-fluxes.Comment: 41 pages, harvmac. Typos removed and more general twisted matter
field metric use
Maximal Temperature in Flux Compactifications
Thermal corrections have an important effect on moduli stabilization leading
to the existence of a maximal temperature, beyond which the compact dimensions
decompactify. In this note, we discuss generality of our earlier analysis and
apply it to the case of flux compactifications. The maximal temperature is
again found to be controlled by the supersymmetry breaking scale, T_{crit} \sim
\sqrt{m_{3/2} M_P}.Comment: 10 pages, 10 figures. v2:comment and references adde