74 citations · 273 across the 11 of their papers we have counts for
4 papers · 1 filter
Measuring the duration of inflation with the curvaton
Jesus Torrado, Christian T. Byrnes, Robert J. Hardwick +2
Simple models of single-field inflation in the very early universe can generate the observed amplitude and scale dependence of the primordial density perturbation, but models with…
A novel way to determine the scale of inflation
Kari Enqvist, Robert J. Hardwick, Tommi Tenkanen +2
We show that in the Feebly Interacting Massive Particle (FIMP) model of Dark Matter (DM), one may express the inflationary energy scale as a function of three otherwise unrel…
A Quantum Window Onto Early Inflation
Robert J. Hardwick, Vincent Vennin, David Wands
Inflation in the early Universe is one of the most promising probes of gravity in the high-energy regime. However, observable scales give access to a limited window in the inflatio…
The stochastic spectator
Robert J. Hardwick, Vincent Vennin, Christian T. Byrnes +2
We study the stochastic distribution of spectator fields predicted in different slow-roll inflation backgrounds. Spectator fields have a negligible energy density during inflation…