English

A c=1 phase transition in two-dimensional CDT/Horava-Lifshitz gravity?

General Relativity and Quantum Cosmology 2015-04-15 v1 High Energy Physics - Lattice High Energy Physics - Theory

Abstract

We study matter with central charge c>1c >1 coupled to two-dimensional (2d) quantum gravity, here represented as causal dynamical triangulations (CDT). 2d CDT is known to provide a regularization of (Euclidean) 2d Ho\v{r}ava-Lifshitz quantum gravity. The matter fields are massive Gaussian fields, where the mass is used to monitor the central charge cc. Decreasing the mass we observe a higher order phase transition between an effective c=0c=0 theory and a theory where c>1c>1. In this sense the situation is somewhat similar to that observed for "standard" dynamical triangulations (DT) which provide a regularization of 2d quantum Liouville gravity. However, the geometric phase observed for c>1c >1 in CDT is very different from the corresponding phase observed for DT.

Keywords

Cite

@article{arxiv.1412.3873,
  title  = {A c=1 phase transition in two-dimensional CDT/Horava-Lifshitz gravity?},
  author = {Jan Ambjørn and Andrzej Görlich and Jerzy Jurkiewicz and Hongguang Zhang},
  journal= {arXiv preprint arXiv:1412.3873},
  year   = {2015}
}

Comments

16 pages, 10 figures

R2 v1 2026-06-22T07:28:41.359Z