PIRSA:17060098

Emergent bouncing cosmology from quantum gravity condensates

Wilson-Ewing, E. (2017). Emergent bouncing cosmology from quantum gravity condensates. Perimeter Institute. https://pirsa.org/17060098

Wilson-Ewing, Edward. Emergent bouncing cosmology from quantum gravity condensates. Perimeter Institute, Jun. 26, 2017, https://pirsa.org/17060098 

          @misc{ pirsa_PIRSA:17060098,
            doi = {10.48660/17060098},
            url = {https://pirsa.org/17060098},
            author = {Wilson-Ewing, Edward},
            keywords = {Cosmology},
            language = {en},
            title = {Emergent bouncing cosmology from quantum gravity condensates},
            publisher = {Perimeter Institute},
            year = {2017},
            month = {jun},
            note = {PIRSA:17060098 see, \url{https://pirsa.org}}
          }

Edward Wilson-Ewing University of New Brunswick

Talk numberPIRSA:17060098
DOI10.48660/17060098
Collection
Talk Type Conference
Subject

Abstract

I will explain how cosmological dynamics emerge from the hydrodynamics of isotropic group field theory condensate states in the Gross-Pitaevskii approximation. The correct Friedmann equations are recovered in the classical limit for some choices of the parameters in the action for the group field theory, and quantum gravity corrections arise in the high-curvature regime causing a bounce which generically resolves the big-bang and big-crunch singularities.