Strong cosmic censorship for the massless charged scalar field in the Reissner-Nordstrom–de Sitter spacetime

Aug 10, 2018
7 pages
Published in:
  • Phys.Rev.D 98 (2018) 12, 124025
  • Published: Dec 20, 2018
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Abstract: (APS)
It has recently been shown that the strong cosmic censorship conjecture can be violated by the massless neutral scalar field in the nearly extremal Reissner-Nordstrom–de Sitter black hole. However, the formation of such a black hole by gravitational collapse necessitates the presence of the charged sector on top of the Einstein-Maxwell system. Thus, we numerically calculate the quasinormal modes for a massless charged scalar field in the Reissner-Nordstrom–de Sitter spacetime by generalizing the characteristic formulation to the charged case. As a result, the strong cosmic censorship is recovered by our massless charged scalar field except in the highly extremal limit Q→Qm, where the violation still occurs when the scalar field is appropriately charged.
Note:
  • figures refined and added, references updated and added, version to appear in Physical Review D
  • General relativity, alternative theories of gravity