Anisotropic Friedmann-Robertson-Walker universe from nonlinear massive gravity
High Energy Physics - Theory
2012-10-17 v2 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
Abstract
In the scope of the nonlinear massive gravity, we study fixed points of evolution equations for a Bianchi type--I universe. We find a new attractor solution with non-vanishing anisotropy, on which the physical metric is isotropic but the Stuckelberg configuration is anisotropic. As a result, at the background level, the solution describes a homogeneous and isotropic universe, while a statistical anisotropy is expected from perturbations, suppressed by smallness of the graviton mass.
Cite
@article{arxiv.1206.2723,
title = {Anisotropic Friedmann-Robertson-Walker universe from nonlinear massive gravity},
author = {A. Emir Gumrukcuoglu and Chunshan Lin and Shinji Mukohyama},
journal= {arXiv preprint arXiv:1206.2723},
year = {2012}
}
Comments
4 pages, 1 figure, REVTeX4; V2 with minor revison, and to appear on PLB