Emergent bouncing cosmology from quantum gravity condensates
APA
Wilson-Ewing, E. (2017). Emergent bouncing cosmology from quantum gravity condensates. Perimeter Institute. https://pirsa.org/17060098
MLA
Wilson-Ewing, Edward. Emergent bouncing cosmology from quantum gravity condensates. Perimeter Institute, Jun. 26, 2017, https://pirsa.org/17060098
BibTex
@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}} }
University of New Brunswick
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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.