Seminar Clemens Wieck

Speaker: 
Clemens Wieck
Affiliation: 
DESY, Hamburg
Title: 
Challenges for Large-Field Inflation and Moduli Stabilization
Abstract: 

We analyze the interplay between Kahler moduli stabilization with spontaneous supersymmetry breaking and chaotic inflation in supergravity. While heavy moduli decouple from inflation in the supersymmetric limit, supersymmetry breaking generically introduces non-decoupling effects. These lead to inflation driven by a soft mass term. This scenario needs no stabilizer field, but the stability of moduli during inflation imposes a large supersymmetry breaking scale and a careful choice of initial conditions. We illustrate this in two prominent examples of moduli stabilization: KKLT stabilization and the simplest Large Volume Scenario. Remarkably, all models have a universal effective inflaton potential which is flattened compared to quadratic inflation.

Location: 
5111.0135
Date: 
Friday, January 30, 2015 - 12:30