The coupling to matter in Massive, Bi- and Multi-Gravity
High Energy Physics - Theory
2015-01-21 v2 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Abstract
In this paper we construct a family of ways in which matter can couple to one or more `metrics'/spin-2 fields in the vielbein formulation. We do so subject to requiring the weak equivalence principle and the absence of ghosts from pure spin-2 interactions generated by the matter action. Results are presented for Massive, Bi- and Multi-Gravity theories and we give explicit expressions for the effective matter metric in all of these cases.
Cite
@article{arxiv.1408.5131,
title = {The coupling to matter in Massive, Bi- and Multi-Gravity},
author = {Johannes Noller and Scott Melville},
journal= {arXiv preprint arXiv:1408.5131},
year = {2015}
}
Comments
16 pages