Quantum Gravity in 2+1 Dimensions: The Case of a Closed Universe
General Relativity and Quantum Cosmology
2015-06-25 v2 High Energy Physics - Theory
Abstract
In three spacetime dimensions, general relativity drastically simplifies, becoming a ``topological'' theory with no propagating local degrees of freedom. Nevertheless, many of the difficult conceptual problems of quantizing gravity are still present. In this review, I summarize the rather large body of work that has gone towards quantizing (2+1)-dimensional vacuum gravity in the setting of a spatially closed universe.
Keywords
Cite
@article{arxiv.gr-qc/0409039,
title = {Quantum Gravity in 2+1 Dimensions: The Case of a Closed Universe},
author = {S. Carlip},
journal= {arXiv preprint arXiv:gr-qc/0409039},
year = {2015}
}
Comments
61 pages, draft of review for Living Reviews; comments, criticisms, additions, missing references welcome; v2: minor changes, added references