On the true nature of renormalizability in Horava-Lifshitz gravity
arXiv:1205.1722 · doi:10.1007/s10701-012-9677-1
Abstract
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.
arXiv commentLatex file in Revtex style, 5 pages, no figures. v2: references added, version accepted for publication in Foundations of Physics
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