Dimensional reduction in causal set gravity
- Author(s): Carlip, S
- et al.
Published Web Locationhttps://doi.org/10.1088/0264-9381/32/23/232001
© 2015 IOP Publishing Ltd. 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.'