Strong coupling in extended Hořava–Lifshitz gravity

A. Papazoglou; T. Sotiriou

doi:10.1016/j.physletb.2010.01.054

Strong coupling in extended Hořava–Lifshitz gravity

A. Papazoglou, T. Sotiriou

Institute of Cosmology & Gravitation

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Abstract

An extension of Hořava–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)

Original language	English
Pages (from-to)	197-200
Number of pages	4
Journal	Physics Letters B
Volume	685
Issue number	2-3
DOIs	https://doi.org/10.1016/j.physletb.2010.01.054
Publication status	Published - 1 Mar 2010

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0911.1299v4.pdfSubmitted manuscript, 124 KB

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abstract = "An extension of Ho{\v r}ava–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)",

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AU - Sotiriou, T.

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AB - An extension of Hořava–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)

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DO - 10.1016/j.physletb.2010.01.054

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JO - Physics Letters B

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Strong coupling in extended Hořava–Lifshitz gravity

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