Evidence for Asymptotic Safety from Lattice Quantum Gravity
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✦ hep-lat
hep-phhep-th
keywords
distanceasymptoticdimensiondynamicalgravityquantumsafetyshort
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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.
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Cited by 1 Pith paper
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Asymptotically safe gravitational form factors are obtained by integrating the proper-time flow to k=0; finite cutoff-independent results with 1/q² UV decay require selecting the non-Gaussian fixed point as UV boundar...
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