de Sitter gravity from lattice gauge theory
High Energy Physics - Lattice
2013-03-05 v2 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
We investigate a lattice model for Euclidean quantum gravity based on discretization of the Palatini formulation of General Relativity. Using Monte Carlo simulation we show that while a naive approach fails to lead to a vacuum state consistent with the emergence of classical spacetime, this problem may be evaded if the lattice action is supplemented by an appropriate counter term. In this new model we find regions of the parameter space which admit a ground state which can be interpreted as (Euclidean) de Sitter space.
Cite
@article{arxiv.0912.5525,
title = {de Sitter gravity from lattice gauge theory},
author = {Simon Catterall and Daniel Ferrante and A. Nicholson},
journal= {arXiv preprint arXiv:0912.5525},
year = {2013}
}
Comments
16 pages, 11 figures. email address updated