PIRSA:17010062

Video URL

https://pirsa.org/17010062

Emergent Friedmann dynamics with a quantum bounce from quantum gravity condensates

Wilson-Ewing, E. (2017). Emergent Friedmann dynamics with a quantum bounce from quantum gravity condensates. Perimeter Institute for Theoretical Physics. https://pirsa.org/17010062

Wilson-Ewing, Edward. Emergent Friedmann dynamics with a quantum bounce from quantum gravity condensates. Perimeter Institute for Theoretical Physics, Jan. 19, 2017, https://pirsa.org/17010062 

          @misc{ scivideos_PIRSA:17010062,
            doi = {10.48660/17010062},
            url = {https://pirsa.org/17010062},
            author = {Wilson-Ewing, Edward},
            keywords = {Quantum Gravity},
            language = {en},
            title = {Emergent Friedmann dynamics with a quantum bounce from quantum gravity condensates},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2017},
            month = {jan},
            note = {PIRSA:17010062 see, \url{https://scivideos.org/pirsa/17010062}}
          }

Edward Wilson-Ewing University of New Brunswick

Talk numberPIRSA:17010062
DOI10.48660/17010062
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
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.