It is shown that generalized CDT, the two-dimensional theory of quantum gravity, constructed as a scaling limit from so-called causal dynamical triangulations, can be obtained from a cubic matrix model. It involves taking a new scaling limit of matrix models, which is more natural from a classical point of view.
@article{arxiv.1105.1741,
title = {CDT as a scaling limit of matrix models},
author = {Jan Ambjorn},
journal= {arXiv preprint arXiv:1105.1741},
year = {2011}
}
Comments
Based on a talk presented at the XXIII Marian Smoluchowski Symposium on Statistical Physics,"Random Matrices, Statistical Physics and Information Theory", Krakow, Poland, September 26-30, 2010. To appear in Acta Physica Polonica B, Vol 42, No 5 (2011)