215 citations · 2.3k across the 55 of their papers we have counts for
4 papers · 1 filter
Resolving primordial physics through correlated signatures
Kari Enqvist, David J. Mulryne, Sami Nurmi
We discuss correlations among spectral observables as a new tool for differentiating between models for the primordial perturbation. We show that if generated in the isocurvature s…
The curvature perturbation at second order
Mafalda Dias, Joseph Elliston, Jonathan Frazer +2
We give an explicit relation, up to second-order terms, between scalar-field fluctuations defined on spatially-flat slices and the curvature perturbation on uniform-density slices.…
General analytic predictions of two-field inflation and perturbative reheating
Joseph Elliston, Stefano Orani, David J. Mulryne
The observational signatures of multi-field inflation will generally evolve as the Universe reheats. We introduce a general analytic formalism for tracking this evolution through p…
Exploring Two-Field Inflation in the Wess-Zumino Model
John Ellis, Nick E. Mavromatos, David J. Mulryne
We explore inflation via the effective potential of the minimal Wess-Zumino model, considering both the real and imaginary components of the complex field. Using transport techniqu…