PIRSA:13070071 Conference

DOI10.48660/13070071

Conference/School: Loops 13

Loll, R. (2013). Causal Dynamical Triangulations without Preferred Foliation. Perimeter Institute. https://pirsa.org/13070071

Loll, Renate. Causal Dynamical Triangulations without Preferred Foliation. Perimeter Institute, Jul. 25, 2013, https://pirsa.org/13070071 

@misc{ pirsa_PIRSA:13070071,
  doi = {10.48660/13070071},
  url = {https://pirsa.org/13070071},
  author = {Loll, Renate},
  keywords = {},
  language = {en},
  title = {Causal Dynamical Triangulations without Preferred Foliation},
  publisher = {Perimeter Institute},
  year = {2013},
  month = {jul},
  note = {PIRSA:13070071 see, \url{https://pirsa.org}}
}

Abstract

We introduce a generalized version of the Causal Dynamical Triangulations (CDT) formulation of quantum gravity, in which the regularized, triangulated path integral histories maintain their causal properties, but do not have a preferred proper-time foliation. An extensive numerical study of the associated nonperturbative path integral in 2+1 dimensions shows that it can nevertheless reproduce the emergence of an extended de Sitter universe on large scales, a key feature of CDT quantum gravity. This suggests that the preferred foliation normally used in CDT is not a crucial (although convenient) part of its background structure.

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