r - qc / 9 80 30 19 v 3 1 1 A ug 1 99 8 No Scalar Hair Theorem for a Charged Spherical Black Hole
نویسندگان
چکیده
This paper consolidates the no scalar hair theorem for a charged spherically symmetric black hole in four dimensions in general relativity as well as in all scalar tensor theories, both minimally and nonminimally coupled, when the effective Newtonian constant of gravity is positive. However, there is an exception when the matter field itself is coupled to the scalar field, such as in dilaton gravity.
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متن کاملar X iv : g r - qc / 9 90 80 17 v 1 5 A ug 1 99 9 Some brane theoretic no - hair results ( and their field theory duals )
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متن کاملar X iv : g r - qc / 9 70 70 27 v 2 2 9 Ju l 1 99 7 CGPG - 97 / 7 - 1 Black Holes with Short Hair
We present spherically symmetric black hole solutions for Einstein gravity coupled to anisotropic matter. We show that these black holes have arbitrarily short hair, and argue for stability by showing that they can arise from dynamical collapse. We also show that a recent ‘no short hair’ theorem does not apply to these solutions. Pacs numbers: 04.20.Jb, 04.40.Nr, 04.70.Bw Typeset using REVTEX
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