Lorentz Violations and Euclidean Signature Metrics
General Relativity and Quantum Cosmology
2009-11-10 v2
Abstract
We show that the families of effective actions considered by Jacobson et al. to study Lorentz invariance violations contain a class of models that represent pure General Relativity with Euclidean signature. We also point out that some members of this family of actions preserve Lorentz invariance in a generalized sense.
Keywords
Cite
@article{arxiv.gr-qc/0307066,
title = {Lorentz Violations and Euclidean Signature Metrics},
author = {J. Fernando Barbero G. and Eduardo J. S. Villaseñor},
journal= {arXiv preprint arXiv:gr-qc/0307066},
year = {2009}
}
Comments
4 pages. Minor changes. Added references. Accepted for publication in Physical Review D