期刊
PHYSICS LETTERS B
卷 803, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.physletb.2020.135324
关键词
-
资金
- Japan Society for the Promotion of Science (JSPS)
- [NRF-2015R1A4A1042542]
We construct charged soliton solutions around spherical charged black holes with no angular momentum in asymptotically flat spacetime. These solutions are non-linear generalizations of charged scalar clouds, dubbed Q-clouds, and they do not contradict the non-existence theorem for free (linear) scalar clouds around charged black holes. These solutions are the first examples of O(3) solutions for Q-clouds around a non-extremal and non-rotating BH in the Abelian gauge theory. We show that a solution exists with an infinitely short cloud in the limit of extremal black holes. We discuss the evolution of Q-cloud in a system with fixed total charge and describe how the existence of Q-clouds is related to the weak-gravity conjecture. The reason that the no-hair theorem by Mayo and Bekenstein cannot be applied to the massive scalar field is also discussed. (C) 2020 Published by Elsevier B.V.
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