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9 July 2020 to 31 December 2021
Europe/Zurich timezone

Decoding and bootstrapping cosmological fluctuations

25 Mar 2021, 14:00
1h

Speaker

Prof. Guilherme L. Pimentel (Leiden U.)

Description

I will review our current understanding of the initial conditions of the universe, and describe what information is available from current and future measurements of cosmological correlation functions. Then I will describe a new method to compute and constrain the possible shapes of those correlation functions, assuming they were generated during inflation. This ``cosmological bootstrap” draws inspiration from the modern scattering amplitudes program in flat space, as well as the conformal bootstrap of phase transitions. After discussing primordial scalar fluctuations, I will also explain how the consistent propagation of gravitational waves imposes further constraints on the structure of spinning primordial correlators.

Presentation materials

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