Geometrical Trinity of Unimodular Gravity
General Relativity and Quantum Cosmology
2023-05-31 v1 High Energy Physics - Theory
Abstract
We construct a Weyl transverse diffeomorphism invariant theory of teleparallel gravity by employing the Weyl compensator formalism. The low-energy dynamics has a single spin two gravition without a scalar degree of freedom. By construction, it is equivalent to unimodular gravity (as well as Einstein's general relativity with an adjustable cosmological constant) at the non-linear level. Combined with our earlier construction of a Weyl transverse diffeomorphism invariant theory of symmetric teleparallel gravity, unimodular gravity is represented in three alternative ways.
Cite
@article{arxiv.2209.09462,
title = {Geometrical Trinity of Unimodular Gravity},
author = {Yu Nakayama},
journal= {arXiv preprint arXiv:2209.09462},
year = {2023}
}
Comments
16 pages