Bouncing cosmologies from quantum gravity condensates
General Relativity and Quantum Cosmology
2017-01-25 v3 High Energy Physics - Theory
Abstract
We show how the large-scale cosmological dynamics can be obtained from the hydrodynamics of isotropic group field theory condensate states in the Gross-Pitaevskii approximation. The correct Friedmann equations are recovered in the semi-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.
Keywords
Cite
@article{arxiv.1602.08271,
title = {Bouncing cosmologies from quantum gravity condensates},
author = {Daniele Oriti and Lorenzo Sindoni and Edward Wilson-Ewing},
journal= {arXiv preprint arXiv:1602.08271},
year = {2017}
}
Comments
5 pages, v2: Typos corrected, v3: Clarifications added