Strong coupling in extended Horava-Lifshitz gravity

Abstract

An extension of Horava-Lifshitz gravity was recently proposed in order to address the pathological behavior of the scalar mode all previous versions of the theory exhibit. We show that even in this new extension the strong coupling persists, casting doubts on whether such a model can constitute an interesting alternative to general relativity (GR).

4 pages; v2: minor changes and references added; v3: clarification regarding the strong coupling scale added; v4: version accepted for publication in PLB, addresses issues raised in arXiv:0912.0550

References in corpus (12)

• Quantum Gravity at a Lifshitz Point
• A healthy extension of Horava gravity
• Horava-Lifshitz Cosmology
• Strong coupling in Horava gravity
• Solutions to Horava Gravity
• On the Extra Mode and Inconsistency of Horava Gravity
• Phenomenologically viable Lorentz-violating quantum gravity
• Lorentz symmetry breaking as a quantum field theory regulator
• Comment on `Strong coupling in extended Horava-Lifshitz gravity'
• Cosmological perturbations in Horava-Lifshitz theory without detailed balance
• A Trouble with Hořava-Lifshitz Gravity
• Cuscuton and low energy limit of Horava-Lifshitz gravity

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