70 citations · 244 across the 12 of their papers we have counts for
Showing 2011Show all
3 papers · 1 filter
astro-ph.CO2011★ 15 cited
Quantifying the behaviour of curvature perturbations during inflation
Ellie Nalson, Adam J. Christopherson, Ian Huston +1
How much does the curvature perturbation change after it leaves the horizon, and when should one evaluate the power spectrum? To answer these questions we study single field inflat…
astro-ph.CO2011★ 43 cited
Calculating Non-adiabatic Pressure Perturbations during Multi-field Inflation
Ian Huston, Adam J. Christopherson
Isocurvature perturbations naturally occur in models of inflation consisting of more than one scalar field. In this paper we calculate the spectrum of isocurvature perturbations ge…
astro-ph.CO2011★ 19 cited
Second Order Perturbations During Inflation Beyond Slow-roll
Ian Huston, Karim A. Malik
We numerically calculate the evolution of second order cosmological perturbations for an inflationary scalar field without resorting to the slow-roll approximation or assuming larg…