Speaker
David Wands
(University of Portsmouth)
Description
I will discuss the status of primordial non-Gaussianity after the release of Planck 2013 data. Specific models for the primordial bispectrum are now tightly constrained, while higher-order correlators remain only weakly bounded. Non-linear evolution does generate non-Gaussianity and the challenge remains to separate out the intrinsic non-Gaussianity imprinted in the cosmic microwave background and large-scale structure from primordial non-Gaussianity from inflation (or other scenarios for the origin of structure).
Author
David Wands
(University of Portsmouth)
