Massive Gravity with Anisotropic Scaling

Autor:	Cuadros-Melgar, Bertha, Papantonopoulos, Eleftherios, Tsoukalas, Minas, Zamarias, Vassilios
Rok vydání:	2011
Předmět:	High Energy Physics - Theory General Relativity and Quantum Cosmology
Zdroj:	Phys. Rev. D85, 124035 (2012)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevD.85.124035
Popis:	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 Comment: 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
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1108.3771 Zobrazit plný text záznamu View this record from Arxiv