Scalar field instabilities in charged BTZ black holes

被引：6

作者：

Fontana, R. D. B. ^{[1
,2
,3
]}

机构：

[1] Univ Fed Rio Grande do Sul, Campus Tramandai RS Estr Tramandai Osorio, BR-95590000 Porto Alegre, RS, Brazil

[2] Univ Aveiro, Dept Matemat, Campus Santiago, P-3810183 Aveiro, Portugal

[3] Ctr Res & Dev Math & Applicat CIDMA, Campus Santiago, P-3810183 Aveiro, Portugal

来源：

PHYSICAL REVIEW D | 2024年 / 109卷 / 04期

关键词：

QUASI-NORMAL MODES; HAWKING RADIATION; ABSORPTION;

D O I：

10.1103/PhysRevD.109.044039

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate the charged scalar field propagating in a (2 + 1) charged Banados-Teitelboim-Zanelli black hole. The conditions for stability are studied unveiling, for each black hole geometry, the existence of a critical scalar charge as of the evolution is unstable. The existence of growing profiles is substantiated by the deep in the effective potential that intensifies as the scalar charge increases. The phenomenon happens in every black hole geometry even for small geometry charge. In the small scalar charge regime, the field evolution is stable and in such we calculate the quasinormal modes.

引用

页数：7

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