July 9, 2020 to January 31, 2025
Europe/Zurich timezone

Non-Gaussianities from primordial quantum diffusion

Sep 27, 2022, 2:00 PM
1h 20m


Vincent Vennin (LPENS, Paris & APC, Paris)


I will show that primordial quantum diffusion unavoidably generates non-Gaussian, exponential tails in the distribution of inflationary perturbations. This type of non-Gaussianity cannot be captured by the usual perturbative parametrisations, and it leaves specific imprints on the statistics of cosmic structures that I will discuss.

Presentation materials