Causal Dynamical Triangulations without Preferred Foliation
arXiv:1305.4582 · doi:10.1016/j.physletb.2013.06.007
Abstract
We introduce a generalized version of the Causal Dynamical Triangulations (CDT) formulation of quantum gravity, in which the regularized, triangulated path integral histories retain 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 (albeit convenient) part of its background structure.
12 pages, 8 figures
References in corpus (3)
Cited by in corpus (40)
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