PIRSA:21110043

Video URL

https://pirsa.org/21110043

Discriminating between theories of the very early universe

Quintin, J. (2021). Discriminating between theories of the very early universe . Perimeter Institute for Theoretical Physics. https://pirsa.org/21110043

Quintin, Jerome. Discriminating between theories of the very early universe . Perimeter Institute for Theoretical Physics, Nov. 30, 2021, https://pirsa.org/21110043 

          @misc{ scivideos_PIRSA:21110043,
            doi = {10.48660/21110043},
            url = {https://pirsa.org/21110043},
            author = {Quintin, Jerome},
            keywords = {Cosmology},
            language = {en},
            title = {Discriminating between theories of the very early universe },
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2021},
            month = {nov},
            note = {PIRSA:21110043 see, \url{https://scivideos.org/pirsa/21110043}}
          }

Jerome Quintin University of Waterloo

Talk numberPIRSA:21110043
DOI10.48660/21110043
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

There exist various scenarios for the very early universe that could potentially be the explanation for the observed properties of the cosmic microwave background. The current paradigm -- inflationary cosmology -- has rightfully received much attention, but it is not the only theoretically viable explanation. Indeed, several alternative scenarios exist, for example a contracting universe prior to a bounce or a slowly expanding emerging universe. 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.