Massive Gravity with Anisotropic Scaling
High Energy Physics - Theory
2012-07-13 v2 General Relativity and Quantum Cosmology
Abstract
We study a massive gravity theory which is Lorentz violating all the way from ultraviolet to infrared energy scales. At short distances the theory breaks diffeomorphism invariance and time and space scale differently. Dynamical metric fields are introduced which upon linearization over a Minkowski background correspond to Lorentz violating mass terms at large distances. We perform a scalar perturbation analysis and we show that with an appropriate choice of parameters the theory is healthy without ghosts, tachyons, strong coupling problems and instabilities
Keywords
Cite
@article{arxiv.1108.3771,
title = {Massive Gravity with Anisotropic Scaling},
author = {Bertha Cuadros-Melgar and Eleftherios Papantonopoulos and Minas Tsoukalas and Vassilios Zamarias},
journal= {arXiv preprint arXiv:1108.3771},
year = {2012}
}
Comments
16 pages, 4 figures, change of title, discussion on the effect of Lorentz violating mass terms is added. To appear in PRD. arXiv admin note: text overlap with arXiv:0911.1299