Evidence for asymptotic safety from lattice quantum gravity

Phys Rev Lett. 2011 Oct 14;107(16):161301. doi: 10.1103/PhysRevLett.107.161301. Epub 2011 Oct 14.

Abstract

We calculate the spectral dimension for nonperturbative quantum gravity defined via Euclidean dynamical triangulations. We find that it runs from a value of ∼3/2 at short distance to ∼4 at large distance scales, similar to results from causal dynamical triangulations. We argue that the short-distance value of 3/2 for the spectral dimension may resolve the tension between asymptotic safety and the holographic principle.