201 citations · 1.8k across the 54 of their papers we have counts for
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Observational constraints on Hyperinflation
Marios Bounakis, Ian G. Moss, Gerasimos Rigopoulos
We study a Hyperinflation model involving a field doublet on a hyperbolic field-space manifold and an exponential potential, providing a concise treatment of the evolution of the e…
Functional Renormalisation Group for Brownian Motion I: The Effective Equations of Motion
Ashley Wilkins, Gerasimos Rigopoulos, Enrico Masoero
We use the functional Renormalisation Group (fRG) to describe the in and out of equilibrium dynamics of stochastic processes, governed by an overdamped Langevin equation. Exploitin…
Feynman Rules for Stochastic Inflationary Correlators
Marios Bounakis, Gerasimos Rigopoulos
We elaborate on the functional integral describing the stochastic dynamics of a spectator field during inflation, comparing its diagrammatic expansion to that obtained directly fro…