Lovelock gravity is equivalent to Einstein gravity coupled to form fields
High Energy Physics - Theory
2015-06-12 v1 General Relativity and Quantum Cosmology
Abstract
Lovelock gravity is a class of higher-derivative gravitational theories whose linearized equations of motion have no more than two time derivatives. Here, it is shown that any Lovelock theory can be effectively described as Einstein gravity coupled to a p-form gauge field. This extends the known example of an f(R) theory of gravity, which can be described as Einstein gravity coupled to a scalar field.
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Cite
@article{arxiv.1212.0625,
title = {Lovelock gravity is equivalent to Einstein gravity coupled to form fields},
author = {Ram Brustein and A. J. M. Medved},
journal= {arXiv preprint arXiv:1212.0625},
year = {2015}
}
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17 pages