Galileons from Lovelock actions
General Relativity and Quantum Cosmology
2013-05-29 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
We demonstrate how, for an arbitrary number of dimensions, the Galileon actions and their covariant generalizations can be obtained through a standard Kaluza-Klein compactification of higher-dimensional Lovelock gravity. In this setup, the dilaton takes on the role of the Galileon. In addition, such compactifications uncover other more general Galilean actions, producing purely second-order equations in the weak-field limit, now both for the Galileon and the metric perturbations.
Keywords
Cite
@article{arxiv.1102.0487,
title = {Galileons from Lovelock actions},
author = {Karel Van Acoleyen and Jos Van Doorsselaere},
journal= {arXiv preprint arXiv:1102.0487},
year = {2013}
}
Comments
15 pages, some extra references