We examine the structure of soft supersymmetry breaking terms in KKLT models of flux compactification with low energy supersymmetry. Moduli are stabilized by fluxes and nonperturbative dynamics whileâ€¦ (More)

We extend the KKLT [1] approach to moduli stabilization by including the dilaton and the complex structure moduli into the effective supergravity theory. Decoupling of the dilaton is neither alwaysâ€¦ (More)

The relation between the Hubble constant and the scale of supersymmetry breaking is investigated in models of inflation dominated by a string modulus. Usually in this kind of models the gravitinoâ€¦ (More)

We investigate gaugino condensation in the framework of the strongly coupled heterotic E 8 Ã— E 8 string (Mâ€“theory). Supersymmetry is broken in a hidden sector and gravitational interactions induceâ€¦ (More)

We consider a class of higher order corrections in the form of Euler densities of arbitrary rank n to the standard gravity action in D dimensions. We present a generating functional and an explicitâ€¦ (More)

Bulk matter modes of higher dimensional models generically become unstable in the presence of additional matter multiplets at the branes. This quantum instability is driven by localized Fayetâ€“â€¦ (More)

We consider the higher order gravity with dilaton and with the leading string theory corrections taken into account. The domain wall type solutions are investigated for arbitrary number of spaceâ€“timeâ€¦ (More)

We study models compactified on S/Z2 with bulk and brane matter fields charged under U(1) gauge symmetry. We calculate the FIâ€“terms and show by minimizing the resulting potential that supersymmetryâ€¦ (More)

The consequences of Gauge-Yukawa Unification (GYU) in supersymmetric unified models on low energy physics are analyzed. We find that the observed top-bottom mass hierarchy can be explained byâ€¦ (More)

Several models of inflection point inflation with the volume m odulus as the inflaton are investigated. Non-perturbative superpotentials containing two g augino condensation terms or one such termâ€¦ (More)