695 citations · 3.2k across the 39 of their papers we have counts for
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Primordial trispectrum from inflation
Christian T. Byrnes, Misao Sasaki, David Wands
We use the delta N-formalism to describe the leading order contributions to the primordial power spectrum, bispectrum and trispectrum in multiple-field models of inflation at leadi…
Non-Gaussianity and constraints for the variance of perturbations in the curvaton model
Jussi Valiviita, Misao Sasaki, David Wands
Recently, the primordial non-Gaussianity in the curvaton model has been predicted assuming sudden decay of the curvaton. We extend the calculation to non-instantaneous decay by emp…
Curvature and isocurvature perturbations from two-field inflation in a slow-roll expansion
Christian T. Byrnes, David Wands
We calculate the power spectra of primordial curvature and isocurvature perturbations from a general two field inflation model at next-to-leading order correction in a slow-roll ex…
Non-Gaussianities in two-field inflation
Filippo Vernizzi, David Wands
We study the bispectrum of the curvature perturbation on uniform energy density hypersurfaces in models of inflation with two scalar fields evolving simultaneously. In the case of…