Dr. Klaus Behrndt
LMU
Title: Fixing of moduli by fluxes in type IIA
string theory
Compactifications in the
presence of fluxes can lift (at least part of) the moduli
space of vacua. This has been explored to a large extend
in type IIB string theory. We explore the analogous setup on the IIA side and
argue that all (closed string) moduli can be fixed by
fluxes. The fluxes have a strong back reaction on the geometry resulting in an
internal space that has only weak SU(3) holonomy (or is nearly Kaehler).
The 4d vacuum is AdS and we argue that it can be
lifted to a dS vacuum as in the KKLT-scenario on the
IIB side or by employing the Brown/Teitelboim
mechanism.