Consistent Extension of Hořava Gravity

D. Blas, O. Pujolàs, and S. Sibiryakov
Phys. Rev. Lett. 104, 181302 – Published 7 May 2010

Abstract

We propose a natural extension of Hořava’s model for quantum gravity, which is free from the notorious pathologies of the original proposal. The new model endows the scalar graviton mode with a regular quadratic action and remains power-counting renormalizable. At low energies, it reduces to a Lorentz-violating scalar-tensor gravity theory. The deviations with respect to general relativity can be made weak by an appropriate choice of parameters.

  • Received 29 September 2009

DOI:https://doi.org/10.1103/PhysRevLett.104.181302

©2010 American Physical Society

Authors & Affiliations

D. Blas1, O. Pujolàs2, and S. Sibiryakov1,3

  • 1FSB/ITP/LPPC, École Polytechnique Fédérale de Lausanne, CH-1015, Lausanne, Switzerland
  • 2CERN, Theory Division, CH-1211 Geneva 23, Switzerland
  • 3Institute for Nuclear Research of the Russian Academy of Sciences, 60th October Anniversary Prospect, 7a, 117312 Moscow, Russia

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Issue

Vol. 104, Iss. 18 — 7 May 2010

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