PIRSA:17060108

Cosmological implications of quantum gravity proposals

Sakellariadou, M. (2017). Cosmological implications of quantum gravity proposals. Perimeter Institute. https://pirsa.org/17060108

Sakellariadou, Mairi. Cosmological implications of quantum gravity proposals. Perimeter Institute, Jun. 28, 2017, https://pirsa.org/17060108 

          @misc{ pirsa_PIRSA:17060108,
            doi = {10.48660/17060108},
            url = {https://pirsa.org/17060108},
            author = {Sakellariadou, Mairi},
            keywords = {Cosmology},
            language = {en},
            title = {Cosmological implications of quantum gravity proposals},
            publisher = {Perimeter Institute},
            year = {2017},
            month = {jun},
            note = {PIRSA:17060108 see, \url{https://pirsa.org}}
          }

Mairi Sakellariadou King's College London

DOI 10.48660/17060108
Collection
Talk Type Conference
Subject

Abstract

I will highlight cosmological consequences of Group Field theory Condensate Cosmology and Emergent Gravity on Non-commutative Spaces, two cosmological models based on a top-down and a bottom-up, respectively, approaches to quantum gravity. In particular, I will show that the initial singularity of the standard cosmology is replaced by a bounce, while there is an inflation-like phase with a graceful exit, driven by a purely geometrical mechanism which does not require the introduction of an ad-hoc scalar field.