A Note on B-observables in Ponzano-Regge 3d Quantum Gravity
General Relativity and Quantum Cosmology
2009-01-27 v1
Abstract
We study the insertion and value of metric observables in the (discrete) path integral formulation of the Ponzano-Regge spinfoam model for 3d quantum gravity. In particular, we discuss the length spectrum and the relation between insertion of such B-observables and gauge fixing in the path integral.
Cite
@article{arxiv.0808.0025,
title = {A Note on B-observables in Ponzano-Regge 3d Quantum Gravity},
author = {Etera R. Livine and James P. Ryan},
journal= {arXiv preprint arXiv:0808.0025},
year = {2009}
}
Comments
17 pages