Gauge fixing in Causal Dynamical Triangulations
High Energy Physics - Theory
2009-11-10 v2 General Relativity and Quantum Cosmology
Abstract
We relax the definition of the Ambjorn-Loll causal dynamical triangulation model in 1+1 dimensions to allow for a varying lapse. We show that, as long as the spatially averaged lapse is constant in time, the physical observables are unchanged in the continuum limit. This supports the claim that the time slicing of the model is the result of a gauge fixing, rather than a physical preferred time slicing.
Cite
@article{arxiv.hep-th/0409057,
title = {Gauge fixing in Causal Dynamical Triangulations},
author = {Fotini Markopoulou and Lee Smolin},
journal= {arXiv preprint arXiv:hep-th/0409057},
year = {2009}
}
Comments
14 pages, 2 figures