Non-Linear N-Parameter Spacetime Perturbations: Gauge Transformations
General Relativity and Quantum Cosmology
2009-11-10 v3 Astrophysics
High Energy Physics - Theory
Abstract
We introduce N-parameter perturbation theory as a new tool for the study of non-linear relativistic phenomena. The main ingredient in this formulation is the use of the Baker-Campbell-Hausdorff formula. The associated machinery allows us to prove the main results concerning the consistency of the scheme to any perturbative order. Gauge transformations and conditions for gauge invariance at any required order can then be derived from a generating exponential formula via a simple Taylor expansion. We outline the relation between our novel formulation and previous developments.
Cite
@article{arxiv.gr-qc/0306027,
title = {Non-Linear N-Parameter Spacetime Perturbations: Gauge Transformations},
author = {Carlos F. Sopuerta and Marco Bruni and Leonardo Gualtieri},
journal= {arXiv preprint arXiv:gr-qc/0306027},
year = {2009}
}
Comments
7 pages, no figures, RevTeX 4.0. Revised version to match version published in PRD