# Emergent Friedmann dynamics with a quantum bounce from quantum gravity condensates

### APA

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

### MLA

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

### BibTex

@misc{ pirsa_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}, year = {2017}, month = {jan}, note = {PIRSA:17010062 see, \url{https://pirsa.org}} }

Edward Wilson-Ewing University of New Brunswick

## 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.