# Primordial non-Gaussianities from multiple-field inflation

@article{Seery2005PrimordialNF, title={Primordial non-Gaussianities from multiple-field inflation}, author={David Seery and James E. Lidsey}, journal={Journal of Cosmology and Astroparticle Physics}, year={2005}, volume={2005}, pages={011 - 011} }

We calculate the three-point correlation function evaluated at horizon crossing for a set of interacting scalar fields coupled to gravity during inflation. This provides the initial condition for the three-point function of the curvature perturbation in the Sasaki–Stewart δN formulation. We find that the effect is small, of the order of a slow-roll parameter, and that the non-Gaussianity can be determined on large scales once the unperturbed background evolution is known. As an example of the…

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We calculate the three-point correlation function evaluated at horizon crossing for a set of interacting scalar fields coupled to gravity during inflation. This provides the initial condition for the…

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