Wednesday, May 9, 2012

1205.1722 (Fabio Briscese et al.)

On the true nature of renormalizability in Horava-Lifshitz gravity    [PDF]

Fabio Briscese, Yeinzon Rodriguez, Guillermo A. Gonzalez
We argue that the true nature of the renormalizability of Horava-Lifshitz gravity lies in the presence of higher order spatial derivatives and not in the anisotropic Lifshitz scaling of space and time. We discuss the possibility of constructing a higher order spatial derivatives model that has the same renormalization properties of Horava-Lifshitz gravity but that does not make use of the Lifshitz scaling. In addition, the state-of-the-art of the Lorentz symmetry restoration in Horava-Lifshitz-type theories of gravitation is reviewed.
View original: http://arxiv.org/abs/1205.1722

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