Disformal Transformations in Scalar-Torsion Gravity
General Relativity and Quantum Cosmology
2019-10-02 v2 High Energy Physics - Theory
Abstract
We study disformal transformations in the context of scalar extensions to teleparallel gravity, in which the gravitational interaction is mediated by the torsion of a flat, metric compatible connection. We find a generic class of scalar-torsion actions which is invariant under disformal transformations, and which possesses different invariant subclasses. For the most simple of these subclasses we explicitly derive all terms that may appear in the action. We propose to study actions from this class as possible teleparallel analogues of healthy beyond Horndeski theories.
Cite
@article{arxiv.1905.00451,
title = {Disformal Transformations in Scalar-Torsion Gravity},
author = {Manuel Hohmann},
journal= {arXiv preprint arXiv:1905.00451},
year = {2019}
}
Comments
LaTeX, 11 pages. Contribution to the proceedings of the conference "Teleparallel Universes" in Salamanca 26-28 November 2018; published version