Decoding and bootstrapping cosmological fluctuations

by Gui Pimentel

University Of Amsterdam
at Particles and Fields Seminar

Mon, 05 Apr 2021, 14:00


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.

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Meeting ID: 856 1845 4106
Passcode: 345123

Created on 01-04-2021 by Palti, Eran (palti)
Updaded on 01-04-2021 by Palti, Eran (palti)