108 citations · 442 across the 9 of their papers we have counts for
5 papers · 1 filter
Non-Gaussianity after many-field reheating
Pedro Carrilho, David Mulryne, John Ronayne
We numerically investigate reheating after quadratic inflation with up to 65 fields, focusing on the production of non-Gaussianity. We consider several sets of initial conditions,…
Primordial fluctuations and non-Gaussianities in sidetracked inflation
Sebastian Garcia-Saenz, Sébastien Renaux-Petel, John Ronayne
Heavy scalar fields can undergo an instability during inflation as a result of their kinetic couplings with the inflaton. This is known as the geometrical destabilization of inflat…
Attractor Behaviour in Multifield Inflation
Pedro Carrilho, David Mulryne, John Ronayne +1
We study multifield inflation in scenarios where the fields are coupled non-minimally to gravity via , where are coupling constants, the fields…
Numerically evaluating the bispectrum in curved field-space - with PyTransport 2.0
John W. Ronayne, David J. Mulryne
We extend the transport framework for numerically evaluating the power spectrum and bispectrum in multi-field inflation to the case of a curved field-space metric. This method natu…
PyTransport: A Python package for the calculation of inflationary correlation functions
David J. Mulryne, John W. Ronayne
PyTransport constitutes a straightforward code written in C++ together with Python scripts which automatically edit, compile and run the C++ code as a Python module. It has been wr…