A Note on Ghost-Free Matter Couplings in Massive Gravity and Multi-Gravity
High Energy Physics - Theory
2015-07-21 v2 General Relativity and Quantum Cosmology
Abstract
We consider a recently proposed non-minimal matter coupling in massive gravity and multi-gravity. We argue that, when formulated in terms of unconstrained vielbeins, this matter coupling contains the primary constraints necessary to remove the Boulware-Deser ghost to all orders away from the decoupling limit.
Keywords
Cite
@article{arxiv.1503.06796,
title = {A Note on Ghost-Free Matter Couplings in Massive Gravity and Multi-Gravity},
author = {Kurt Hinterbichler and Rachel A. Rosen},
journal= {arXiv preprint arXiv:1503.06796},
year = {2015}
}
Comments
4 pages, v2 comments, refs added, appearing in PRD