Fixing all moduli: a look at non-perturbative superpotentials

by Susanne Reffert (MPI Munich)

Tuesday 8 Nov 2005, 14:00 → 15:00 Europe/Zurich

TH Auditorium (CERN)

In the moduli stabilization programme a la KKLT, the dilaton and the complex structure moduli are fixed via background 3-form fluxes, whereas the Kaehler moduli are fixed through non-perturbative effects such as Euclidean M5/D3-brane instantons and gaugino condensation. In the first part of my talk, I will concentrate on the conditions under which a non-perturbative superpotential is generated and speak about fermion zero modes in the presence of fluxes of general Hodge type. Secondly, I will discuss moduli stabilization in resolved toroidal type IIB orientifolds. The main emphasis will be on the blowing-up process and the topologies of the exceptional divisors.