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

Signals of a Quantum Universe

Sep 16, 2020, 6:00 PM


Prof. Daniel Green


The idea that structure in the universe was created from quantum mechanical vacuum fluctuations during inflation is very compelling, but unproven. Testing this proposal is challenging because the universe we observe is effectively classical. I will explain the origin of this challenge and how it can be circumvented if we observe equilateral primordial non-Gaussianity. In particular, we will see that the absence of an accompanying folded non-Gaussian signal is only possible (assuming locality) with quantum vacuum fluctuations.

Presentation materials