Strong coupling in extended Hořava–Lifshitz gravity

By A. Papazoglou, T. Sotiriou. 2009

144 citations recorded by the source corpus.

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).

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/404e14e9d1dca803d787e177fe15c12bdf31f377

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Citations in the corpus

Hořava–Lifshitz dark energy (2009, background): “However, the interesting cosmological implications of the scenario at hand motivate us to perform such a cosmological analysis, even with the renormalizability subject, as well as the possible conceptual and theoretical problems of Hořava-Lifshitz gravity itself [11, 12, 17, 22, 103, 104], open for ”
Hořava gravity at a Lifshitz point: A progress report (2017, background): “Since the spin-0 graviton generically appears in this version of Hořava gravity [156, 157], strong coupling problem is inevistable [158, 159].”
Black holes in Einstein-aether and Hořava-Lifshitz gravity (2011, background): “It has been argued that if the mass M? lies somewhere between roughly 10(10)GeV and 10(16)GeV the theory can both avoid strong coupling, and satisfy gravitational constraints and generic LV constraints in the matter sector [16] (the need to alleviate strong coupling imposes the upper bound [11, 13] ”
Modified Gravity and Cosmology (2011, methodology): “This field becomes strongly coupled as the parameters of the low energy theory run towards their diff-invariant values [278] (see also [167, 735, 1025]).”