Scale Invariant Gravity and Black Hole Ringdown
arXiv:1910.04480 · doi:10.1103/PhysRevD.101.024011
Abstract
Scale invariant theories of gravity give a compelling explanation to the early and late time acceleration of the Universe. Unlike most scalar-tensor theories, fifth forces are absent and it would therefore seem impossible to distinguish scale invariant gravity from general relativity. We show that the ringdown of a Schwarschild-de Sitter black hole may have a set of massive modes which are characteristic of scale invariant gravity. In principle these new modes can be used to distinguish scale invariant gravity from general relativity. In practice, we discuss the obstacles to generating these new massive modes and their detectability with future gravitational wave experiments but also speculate on their role in Kerr black holes.
10 pages, submitted to PRD
References in corpus (14)
- Cosmology and the Fate of Dilatation Symmetry
- Instability of the massive Klein-Gordon field on the Kerr spacetime
- Quasinormal modes and Strong Cosmic Censorship
- Testing the black hole "no-hair" hypothesis
- Quasinormal ringing of Kerr black holes: The excitation factors
- Quasinormal modes of Einstein-Gauss-Bonnet-dilaton black holes
- Perturbed Kerr Black Holes can probe deviations from General Relativity
- Frame-dependence of higher-order inflationary observables in scalar-tensor theories
- Weyl Current, Scale-Invariant Inflation and Planck Scale Generation
- Black Hole Hair from Scalar Dark Matter
- No fifth force in a scale invariant universe
- Higgs-Dilaton cosmology: Universality vs. criticality
- Inflation and reheating in scale-invariant scalar-tensor gravity
- Forecasts for Low Spin Black Hole Spectroscopy in Horndeski Gravity