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arXiv · 1711.03390

Evasion of No-Hair Theorems and Novel Black-Hole Solutions in Gauss-Bonnet Theories

G. Antoniou·A. Bakopoulos·P. Kanti
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Abstract

We consider a general Einstein-scalar-GB theory with a coupling function f(\phi). We demonstrate that black-hole solutions appear as a generic feature of this theory since a regular horizon and an asymptotically-flat solution may be easily constructed under mild assumptions for f(\phi). We show that the existing no-hair theorems are easily evaded, and a large number of regular, black-hole solutions with scalar hair are then presented for a plethora of coupling functions f(\phi).

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G. Antoniou, A. Bakopoulos, P. Kanti. 2017-11-09. Evasion of No-Hair Theorems and Novel Black-Hole Solutions in Gauss-Bonnet Theories. https://doi.org/10.1103/physrevlett.120.131102

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