3 papers
astro-ph.CO2019
Testing Inflationary Cosmology
Robert J. Hardwick
In this thesis we will primarily demonstrate how additional scalar degrees of freedom - which are motivated from many high-energy embeddings - open up new observational windows ont…
hep-th2019
Renormalisation group improvement in the stochastic formalism
Robert J. Hardwick, Tommi Markkanen, Sami Nurmi
We investigate compatibility between the stochastic infrared (IR) resummation of light test fields on inflationary spacetimes and renormalisation group running of the ultra-violet…
hep-th2017
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…