68 citations · 381 across the 14 of their papers we have counts for
10 papers · 1 filter
Seven Lessons from Manyfield Inflation in Random Potentials
Mafalda Dias, Jonathan Frazer, M. C. David Marsh
We study inflation in models with many interacting fields subject to randomly generated scalar potentials. We use methods from non-equilibrium random matrix theory to construct the…
Numerical evaluation of the bispectrum in multiple field inflation
Mafalda Dias, Jonathan Frazer, David J. Mulryne +1
We present a complete framework for numerical calculation of the power spectrum and bispectrum in canonical inflation with an arbitrary number of light or heavy fields. Our method…
Simple emergent power spectra from complex inflationary physics
Mafalda Dias, Jonathan Frazer, M. C. David Marsh
We construct ensembles of random scalar potentials for interacting scalar fields using non-equilibrium random matrix theory, and use these to study the generation of observab…
Large Scale Power Suppression in a Multifield Landscape
Jose J. Blanco-Pillado, Mafalda Dias, Jonathan Frazer +1
Power suppression of the cosmic microwave background on the largest observable scales could provide valuable clues about the particle physics underlying inflation. Here we consider…
Computing observables in curved multifield models of inflation - A guide (with code) to the transport method
Mafalda Dias, Jonathan Frazer, David Seery
We describe how to apply the transport method to compute inflationary observables in a broad range of multiple-field models. The method is efficient and encompasses scenarios with…
Scale-dependent bias from multiple-field inflation
Mafalda Dias, Raquel H. Ribeiro, David Seery
We provide a formula for the scaling behaviour of the inflationary bispectrum in the 'squeezed' limit where one momentum becomes much smaller than the other two. This determines th…