Hairy black holes sourced by a conformally coupled scalar field in D dimensions

Jan 20, 2014
5 pages
Published in:
  • Phys.Rev.D 89 (2014) 8, 085040
  • Published: Apr 25, 2014
e-Print:
Report number:
  • PHYS.-REV.-D-89-(2014)-085040

Citations per year

201420172020202320240246810
Abstract: (APS)

There exist well-known no-hair theorems forbidding the existence of hairy black hole solutions in general relativity coupled to a scalar conformal field theory in asymptotically flat space. Even in the presence of cosmological constant, where no-hair theorems can usually be circumvented and black holes with conformal scalar hair were shown to exist in D4 dimensions, no-go results were reported for D>4. In this paper we prove that these obstructions can be evaded and we answer in the affirmative a question that remained open: Whether hairy black holes do exist in general relativity sourced by a conformally coupled scalar field in arbitrary dimensions. We find the analytic black hole solution in arbitrary dimension D>4, which exhibits a backreacting scalar hair that is regular everywhere outside and on the horizon. The metric asymptotes to (anti-)de Sitter spacetime at large distance and admits spherical horizon as well as horizon of a different topology. We also find analytic solutions when higher-curvature corrections O(Rn) of arbitrary order n are included in the gravity action.

Note:
  • 5 pages, no figures. V2: minor changes. Published version
  • 11.10.Kk
  • 11.15.Yc
  • 11.25.Hf
  • black hole: hair
  • field theory: scalar
  • any-dimensional
  • field theory: conformal
  • space-time: de Sitter
  • gravitation: action
  • horizon
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