The effective kinetic term in CDT
Abstract
We report on recently performed simulations of Causal Dynamical Triangulations (CDT) in 2+1 dimensions aimed at studying its effective dynamics in the continuum limit. Two pieces of evidence from completely different measurements are presented suggesting that three-dimensional CDT is effectively described by an action with kinetic term given by a modified Wheeler-De Witt metric. These observations could strengthen an earlier observed connection between CDT and Horava-Lifshitz gravity. One piece of evidence comes from measurements of the modular parameter in CDT simulations with spatial topology of a torus, the other from measurements of local metric fluctuations close to a fixed spatial boundary.
Keywords
Cite
@article{arxiv.1110.5158,
title = {The effective kinetic term in CDT},
author = {Timothy Budd},
journal= {arXiv preprint arXiv:1110.5158},
year = {2012}
}
Comments
4 pages, 4 figures, based on a talk given at Loops '11, Madrid, to appear in Journal of Physics: Conference Series (JPCS)