On asymptotic darkness in Hořava-Lifshitz gravity

  • Emilio Elizalde
  • Pedro J. Silva


Hořava-Lifshitz gravity is shown to exhibit a peculiar behavior, when scattering amplitudes are considered. At low energies it seems to classicalize i.e. the effective size of the interaction grows as a function of the s-parameter, with BHs forming part of the spectrum; but when the probing energy is increased such that higher order operators become important, this behavior changes and the classicalon recedes to a new configuration where ordinary quantum regimes take over. Eventually, the theory behaves as a usual field theory that allows probing arbitrarily small distances. In particular, the classical potential created by a point-like source is finite everywhere exhibiting a Vainshtein alike screening behavior. The transition from one behavior to the other is carefully described in a particular case.


Cosmology of Theories beyond the SM Models of Quantum Gravity 


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Copyright information

© SISSA, Trieste, Italy 2012

Authors and Affiliations

  1. 1.Consejo Superior de Investigaciones Científicas, ICE/CSIC and IEECBarcelonaSpain
  2. 2.Departament de Física and IFAE, Universitat Autònoma de BarcelonaBarcelonaSpain

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