Born-Infeld Gravity with a Massless Graviton in Four Dimensions
High Energy Physics - Theory
2015-03-05 v2 General Relativity and Quantum Cosmology
Abstract
We construct Born-Infeld (BI) type gravity theories which describe tree-level unitary (non-ghost and non-tachyonic) massless spin-2 modes around their maximally symmetric vacua in four dimensions. Building unitary BI actions around flat vacuum is straightforward; but, this is a complicated task around (anti)-de Sitter backgrounds. In this work, we solve the issue and give details of constructing perturbatively viable determinantal BI theories. It is interesting that the Gauss-Bonnet combination, which is a total derivative in four dimensions, plays an important role in the construction of viable BI theories.
Keywords
Cite
@article{arxiv.1410.8033,
title = {Born-Infeld Gravity with a Massless Graviton in Four Dimensions},
author = {Ibrahim Gullu and Tahsin Cagri Sisman and Bayram Tekin},
journal= {arXiv preprint arXiv:1410.8033},
year = {2015}
}
Comments
46 pages, references added