2021 CAP Virtual Congress / Congrès virtuel de l'ACP 2021

(I) Discriminating between theories of the very early universe

8 Jun 2021, 16:35

25m

Underline Conference System

Invited Speaker / Conférencier(ère) invité(e) Symposia Day (DTP) - Cosmology/Jim Peebles celebration TS1-4 Early Universe (DTP Symposium on Cosmology: James Peebles Nobel Celebration) / L'univers jeune (Symposium DPT sur la cosmologie: le prix Nobel de James Peebles)

Speaker

Jerome Quintin (Max Planck Institute for Gravitational Physics)

Description

Different theories of the very early universe that can explain our observations of the cosmic microwave background are presented. The current paradigm - inflationary cosmology - has received much attention, but it is not the only theoretically viable explanation; indeed, several alternative scenarios exist. It thus bares the question: how can we discriminate between the various theories, both from a theoretical and an observational point of view? A few pathways to answering this question are discussed in this talk.