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arXiv · 1102.0487

Galileons from Lovelock actions

Karel Van Acoleyen·Jos Van Doorsselaere
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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.

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Karel Van Acoleyen, Jos Van Doorsselaere. 2011-02-02. Galileons from Lovelock actions. https://doi.org/10.1103/physrevd.83.084025

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