Evidence for Asymptotic Safety from Lattice Quantum Gravity

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.

4 pages, 2 figures. Minor typos corrected, clarifications and reference added. Conforms with version published in PRL

References in corpus (6)

• Asymptotic safety in higher-derivative gravity
• Ultraviolet properties of f(R)-Gravity
• The Nonperturbative Quantum de Sitter Universe
• Quantum Gravity on the Lattice
• The Semiclassical Limit of Causal Dynamical Triangulations
• Thermodynamics of photons on fractals

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