Asymptotic safety and lattice quantum gravity

Jack Laiho, Daniel Coumbe

Research output: Contribution to journalConference Articlepeer-review

1 Scopus citations


We review evidence presented recently that a nonperturbative formulation of quantum gravity defined by Euclidean Dynamical Triangulations with a nontrivial measure term gives rise to a phase with extended, four-dimensional geometries. The results are strikingly consistent with those of Causal Dynamical Triangulations for both the Hausdorff dimension, which is consistent with 4, and for the spectral dimension, which exhibits a scale dependence, running to 4 at long distances and to smaller values at short distances. We discuss some of the implications that this has for the asymptotic safety scenario for quantum gravity.

Original languageEnglish (US)
JournalProceedings of Science
StatePublished - 2011
Externally publishedYes
Event29th International Symposium on Lattice Field Theory, Lattice 2011 - Squaw Valley, Lake Tahoe, United States
Duration: Jul 10 2011Jul 16 2011

ASJC Scopus subject areas

  • General


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