Cosmological perturbations in massive gravity with doubly coupled matter
High Energy Physics - Theory
2015-06-23 v1 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
Abstract
We investigate the cosmological perturbations around FLRW solutions to non- linear massive gravity with a new effective coupling to matter proposed recently. Unlike the case with minimal matter coupling, all five degrees of freedom in the gravity sector propagate on generic self-accelerating FLRW backgrounds. We study the stability of the cosmological solutions and put constraints on the parameters of the theory by demanding the correct sign for the kinetic terms for scalar, vector and tensor perturbations.
Cite
@article{arxiv.1409.7260,
title = {Cosmological perturbations in massive gravity with doubly coupled matter},
author = {A. Emir Gümrükçüoğlu and Lavinia Heisenberg and Shinji Mukohyama},
journal= {arXiv preprint arXiv:1409.7260},
year = {2015}
}
Comments
20 pages