期刊
PHYSICS LETTERS B
卷 782, 期 -, 页码 124-130出版社
ELSEVIER
DOI: 10.1016/j.physletb.2018.05.018
关键词
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资金
- FCT-IF programme
- European Union's Horizon 2020 research and innovation programme under the H2020-MSCA-RISE-2015 [StronGrHEP-690904]
- European Union's Horizon 2020 research and innovation programme under the H2020-MSCA-RISE-2017 [FunFiCO-777740]
- CIDMA project [UID/MAT/04106/2013]
- COST Action GWverse [CA16104]
Hairy black holes (BHs) have macroscopic degrees of freedom which are not associated with a Gauss law. As such, these degrees of freedom are not manifest as quasi-local quantities computed at the horizon. This suggests conceiving hairy BHs as an interacting system with two components: a bald horizon coupled to a hairy environment. Based on this idea we suggest an effective model for hairy BHs typically described by numerical solutions - that allows computing analytically thermodynamic and other quantities of the hairy BH in terms of a fiducial bald BH. The effective model is universalin the sense that it is only sensitive to the fiducial BH, but not to the details of the hairy BH. Consequently, it is only valid in the vicinity of the fiducial BH limit. We discuss, quantitatively, the accuracy of the effective model for asymptotically flat BHs with synchronised hair, both in D = 4 (including self-interactions) and D = 5 spacetime dimensions. We also discuss the applicability of the model to synchronised BHs in D = 5 asymptotically AdS and static D = 4 coloured BHs, exhibiting its limitations. (C) 2018 The Authors. Published by Elsevier B.V.
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