13 citations · 22 across the 2 of their papers we have counts for
4 papers
A short note on the curvature perturbation at second order
Adam J. Christopherson, Ellie Nalson, Karim A. Malik
Working with perturbations about an FLRW spacetime, we compute the gauge-invariant curvature perturbation to second order solely in terms of scalar field fluctuations. Using the cu…
Effects of non-linearities on magnetic field generation
Ellie Nalson, Adam J. Christopherson, Karim A. Malik
Magnetic fields are present on all scales in the Universe. While we understand the processes which amplify the fields fairly well, we do not have a "natural" mechanism to generate…
Quantifying the behaviour of curvature perturbations near Horizon Crossing
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…
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…