Dimensional reduction in causal set gravity

作者：Carlip S^*

来源：Classical and Quantum Gravity, 2015, 32(23): 232001.

DOI：10.1088/0264-9381/32/23/232001

• causal sets
• quantum gravity
• dimensional reduction

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.'

• 出版日期2015-12-2