Spherically Symmetric Solutions in Ghost-Free Massive Gravity

Autor:	Comelli, D., Crisostomi, M., Nesti, F., Pilo, L.
Rok vydání:	2011
Předmět:	High Energy Physics - Theory General Relativity and Quantum Cosmology High Energy Physics - Phenomenology
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevD.85.024044
Popis:	Recently, a class of theories of massive gravity has been shown to be ghost-free. We study the spherically symmetric solutions in the bigravity formulation of such theories. In general, the solutions admit both a Lorentz invariant and a Lorentz breaking asymptotically flat behaviour and also fall in two branches. In the first branch, all solutions can be found analitycally and are Schwarzschild-like, with no modification as is found for other classes of theories. In the second branch, exact solutions are hard to find, and relying on perturbation theory, Yukawa-like modifications of the static potential are found. The general structure of the solutions suggests that the bigravity formulation of massive gravity is crucial and more than a tool. Comment: 15 pages. Some change in the references
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1110.4967 Zobrazit plný text záznamu View this record from Arxiv