73 citations · 345 across the 15 of their papers we have counts for
16 papers
One-loop Pfaffians and large-field inflation in string theory
Fabian Ruehle, Clemens Wieck
We study the consistency of large-field inflation in low-energy effective field theories of string theory. In particular, we focus on the stability of Kähler moduli in the particul…
Inflation in higher-dimensional Space-times
Santiago Pajón Otero, Francisco G. Pedro, Clemens Wieck
We generalise Starobinsky's model of inflation to space-times with dimensions, where dimensions are compactified on a suitable manifold. The -dimensional action feat…
Higgs-otic Inflation and Moduli Stabilization
Sjoerd Bielleman, Luis E. Ibanez, Francisco G. Pedro +2
We study closed-string moduli stabilization in Higgs-otic inflation in Type IIB orientifold backgrounds with fluxes. In this setup large-field inflation is driven by the vacuum ene…
Challenges for D-brane large-field inflation with stabilizer fields
Aitor Landete, Fernando Marchesano, Clemens Wieck
We study possible string theory compactifications which, in the low-energy limit, describe chaotic inflation with a stabilizer field. We first analyze type IIA setups where the inf…
The DBI Action, Higher-derivative Supergravity, and Flattening Inflaton Potentials
Sjoerd Bielleman, Luis E. Ibanez, Francisco G. Pedro +2
In string theory compactifications it is common to find an effective Lagrangian for the scalar fields with a non-canonical kinetic term. We study the effective action of the scalar…
UV Corrections in Sgoldstino-less Inflation
Emilian Dudas, Lucien Heurtier, Clemens Wieck +1
We study the embedding of inflation with nilpotent multiplets in supergravity, in particular the decoupling of the sgoldstino scalar field. Instead of being imposed by hand, the ni…
Inflation, the scale of supersymmetry breaking, and moduli stabilization
Emilian Dudas, Clemens Wieck
We review the effects of heavy scalar fields during inflation in the framework of supergravity. Such heavy scalars can be geometric moduli from string compactifica…
Moduli backreaction and supersymmetry breaking in string-inspired inflation models
Emilian Dudas, Clemens Wieck
We emphasize the importance of effects from heavy fields on supergravity models of inflation. We study, in particular, the backreaction of stabilizer fields and geometric moduli in…
Natural inflation and moduli stabilization in heterotic orbifolds
Fabian Ruehle, Clemens Wieck
We study moduli stabilization in combination with inflation in heterotic orbifold compactifications in the light of a large Hubble scale and the favored tensor-to-scalar ratio $r \…
Challenges for Large-Field Inflation and Moduli Stabilization
Wilfried Buchmuller, Emilian Dudas, Lucien Heurtier +3
We analyze the interplay between Kähler moduli stabilization and chaotic inflation in supergravity. While heavy moduli decouple from inflation in the supersymmetric limit, supersym…
Inflation with Fayet-Iliopoulos Terms
Clemens Wieck, Martin Wolfgang Winkler
Two of the most attractive realizations of inflation in supergravity are based upon the presence of a constant Fayet-Iliopoulos (FI) term. In D-term hybrid inflation it is the FI t…
Large-Field Inflation and Supersymmetry Breaking
Wilfried Buchmuller, Emilian Dudas, Lucien Heurtier +1
Large-field inflation is an interesting and predictive scenario. Its non-trivial embedding in supergravity was intensively studied in the recent literature, whereas its interplay w…
Supersymmetric Moduli Stabilization and High-Scale Inflation
Wilfried Buchmuller, Clemens Wieck, Martin Wolfgang Winkler
We study the back-reaction of moduli fields on the inflaton potential in generic models of F-term inflation. We derive the moduli corrections as a power series in the ratio of Hubb…
Accidental Inflation from Kähler Uplifting
Ido Ben-Dayan, Shenglin Jing, Alexander Westphal +1
We analyze the possibility of realizing inflation with a subsequent dS vacuum in the Kähler uplifting scenario. The inclusion of several quantum corrections to the 4d effective act…
No-scale D-term inflation with stabilized moduli
Wilfried Buchmuller, Valerie Domcke, Clemens Wieck
We study the consistency of hybrid inflation and moduli stabilization, using the Kallosh--Linde model as an example for the latter. We find that F-term hybrid inflation is not viab…
Non-Universal Anomalies in Heterotic String Constructions
Christoph Lüdeling, Fabian Ruehle, Clemens Wieck
We investigate anomalies on heterotic orbifolds and their blowups. We give a simple example of an orbifold blowup which contains anomalous U(1) symmetries that are canceled by axio…