Massive graviton from diffeomorphism invariance
High Energy Physics - Theory
2024-01-23 v2 General Relativity and Quantum Cosmology
Abstract
We describe a mechanism in which the graviton acquires a mass from the functional measure without violating the diffeomorphism symmetry nor including St\"uckelberg fields. Since gauge invariance is not violated, the number of degrees of freedom goes as in general relativity. For the same reason, Boulware-Deser ghosts and the vDVZ disconinuity do not show up. The graviton thus becomes massive at the quantum level while avoiding the usual issues of massive gravity.
Cite
@article{arxiv.2307.13803,
title = {Massive graviton from diffeomorphism invariance},
author = {João M. L. de Freitas and Iberê Kuntz},
journal= {arXiv preprint arXiv:2307.13803},
year = {2024}
}