%0 Journal Article
%A Buchmuller, Wilfried
%A Dudas, Emilian
%A Heurtier, Lucien
%A Westphal, Alexander
%A Wieck, Clemens
%A Winkler, Martin Wolfgang
%T Challenges for large-field inflation and moduli stabilization
%J Journal of high energy physics
%V 1504
%N 4
%@ 1029-8479
%C Berlin
%I Springer
%M PUBDB-2015-04196
%M arXiv:1501.05812
%P 58
%D 2015
%Z OA
%X We analyze the interplay between Kähler moduli stabilization 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, m φ 2  ∼ mm 3/2, where m is a supersymmetric mass parameter. This scenario needs no stabilizer field, but the stability of moduli during inflation imposes a large supersymmetry breaking scale, m 3/2 ≫ H, and a careful choice of initial conditions. This is illustrated in three prominent examples of moduli stabilization: KKLT stabilization, Kähler Uplifting, and the Large Volume Scenario. Remarkably, all models have a universal effective inflaton potential which is flattened compared to quadratic inflation. Hence, they share universal predictions for the CMB observables, in particular a lower bound on the tensor-to-scalar ratio, r ≳ 0.05.
%F PUB:(DE-HGF)29 ; PUB:(DE-HGF)16
%9 ReportJournal Article
%U <Go to ISI:>//WOS:000356853600001
%R 10.1007/JHEP04(2015)058
%U https://bib-pubdb1.desy.de/record/275712