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Dimensional reduction in causal set gravity (1506.08775v3)
Published 29 Jun 2015 in gr-qc and hep-th
Abstract: Results from a number of different approaches to quantum gravity suggest that the effective dimension of spacetime may drop to $d=2$ at small scales. I show that two different dimensional estimators in causal set theory display the same behavior, and argue that a third, the spectral dimension, may exhibit a related phenomenon of "asymptotic silence."
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