Imperial College London

Professor Andrew H Jaffe

Faculty of Natural SciencesDepartment of Physics

Professor of Astrophysics and Cosmology



+44 (0)20 7594 7526a.jaffe Website




Miss Louise Hayward +44 (0)20 7594 7679




1018BBlackett LaboratorySouth Kensington Campus






BibTex format

author = {Hotinli, SC and Frazer, J and Jaffe, AH and Meyers, J and Price, LC and Tarrant, ERM},
title = {Predictions After Many-field Reheating},
url = {},

RIS format (EndNote, RefMan)

AB - We study the sensitivity of cosmological observables to the reheating phasefollowing inflation driven by many scalar fields. We describe a method whichallows semi-analytic treatment of the impact of perturbative reheating oncosmological perturbations using the sudden decay approximation. Focusing on$\calN$-quadratic inflation, we show how the scalar spectral index andtensor-to-scalar ratio are affected by the rates at which the scalar fieldsdecay into radiation. We find that for certain choices of decay rates,reheating following multiple-field inflation can have a significant impact onthe prediction of cosmological observables.
AU - Hotinli,SC
AU - Frazer,J
AU - Jaffe,AH
AU - Meyers,J
AU - Price,LC
AU - Tarrant,ERM
TI - Predictions After Many-field Reheating
UR -
UR -
ER -