88 citations · 535 across the 18 of their papers we have counts for
19 papers
On degenerate models of cosmic inflation
Rhiannon Gwyn, Gonzalo A. Palma, Mairi Sakellariadou +1
In this article we discuss the role of current and future CMB measurements in pinning down the model of inflation responsible for the generation of primordial curvature perturbatio…
Non-Canonical Inflation in Supergravity
Rhiannon Gwyn, Jean-Luc Lehners
We investigate the effect of non-canonical kinetic terms on inflation in supergravity. We find that the biggest impact of such higher-derivative kinetic terms is due to the correct…
de Sitter Vacua in Type IIB String Theory: Classical Solutions and Quantum Corrections
Keshav Dasgupta, Rhiannon Gwyn, Evan McDonough +2
We revisit the classical theory of ten-dimensional two-derivative gravity coupled to fluxes, scalar fields, D-branes, anti D-branes and Orientifold-planes. We show that such set-up…
Relations between canonical and non-canonical inflation
Rhiannon Gwyn, Markus Rummel, Alexander Westphal
We look for potential observational degeneracies between canonical and non-canonical models of inflation of a single field . Non-canonical inflationary models are characterized…
Resonant non-Gaussianity with equilateral properties
Rhiannon Gwyn, Markus Rummel, Alexander Westphal
We discuss the effect of superimposing multiple sources of resonant non-Gaussianity, which arise for instance in models of axion inflation. The resulting sum of oscillating shape c…
Effective field theory of weakly coupled inflationary models
Rhiannon Gwyn, Gonzalo A. Palma, Mairi Sakellariadou +1
The application of Effective Field Theory (EFT) methods to inflation has taken a central role in our current understanding of the very early universe. The EFT perspective has been…