In the approach of Causal Dynamical Triangulations (CDT), quantum gravity is obtained as a scaling limit of a non-perturbative path integral over space-times whose causal structure plays a crucial role in the construction. After some general considerations about the relation between quantum gravity and cosmology, we examine which aspects of CDT are potentially interesting from a cosmological point of view, focusing on the emergence of a de Sitter universe in CDT quantum gravity.
Glaser, L., & Loll, R. (2017, March 1). CDT and cosmology. Comptes Rendus Physique. Elsevier Masson SAS. https://doi.org/10.1016/j.crhy.2017.04.002