The Husain-Kuchar Model: Time Variables and Non-degenerate Metrics
General Relativity and Quantum Cosmology
2008-11-26 v1
Abstract
We study the Husain-Kuchar model by introducing a new action principle similar to the self-dual action used in the Ashtekar variables approach to Quantum Gravity. This new action has several interesting features; among them, the presence of a scalar time variable that allows the definition of geometric observables without adding new degrees of freedom, the appearance of a natural non-degenerate four-metric and the possibility of coupling ordinary matter.
Keywords
Cite
@article{arxiv.gr-qc/9803043,
title = {The Husain-Kuchar Model: Time Variables and Non-degenerate Metrics},
author = {J. Fernando Barbero G. and Alfredo Tiemblo and Romualdo Treseguerres},
journal= {arXiv preprint arXiv:gr-qc/9803043},
year = {2008}
}
Comments
LaTeX, 22 pages, accepted for publication in Phys. Rev. D