Weak cosmic censorship conjecture for the (2+1)-dimensional charged BTZ black hole in the Einstein-Gauss-Bonnet Gravity

被引：12

作者：

Ahmed, Ayyesha K. ^{[1
]}

Shaymatov, Sanjar ^{[2
,3
,4
,5
,6
,7
]}

Ahmedov, Bobomurat ^{[4
,5
,6
]}

机构：

[1] Natl Univ Sci & Technol NUST, Sch Nat Sci SNS, Dept Math, H-12, Islamabad, Pakistan

[2] Zheijiang Univ Technol, Inst Theoret Phys & Cosmol, Hangzhou 310023, Peoples R China

[3] Akfa Univ, Milliy Bog St 264, Tashkent 111221, Uzbekistan

[4] Ulugh Beg Astron Inst, Astron St 33, Tashkent 100052, Uzbekistan

[5] Natl Univ Uzbekistan, Tashkent 100174, Uzbekistan

[6] Natl Res Univ TIIAME, Kori Niyoziy 39, Tashkent 100000, Uzbekistan

[7] Tashkent State Tech Univ, Power Engn Fac, Tashkent 100095, Uzbekistan

来源：

PHYSICS OF THE DARK UNIVERSE | 2022年 / 37卷

关键词：

BTZ black hole; EGB gravity; Charged scalar field; WCCC; QUASI-NORMAL MODES; SHADOW;

D O I：

10.1016/j.dark.2022.101082

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It is well known that (2 + 1) dimensional charged BTZ (Banados, Teitelboim, Zanelli) black hole can be overcharged by a charged scalar field and a charged particle in contrast to their analogues in (3 + 1) and higher dimensions. In this regard, it may play an important role to understand more deeply the properties of the (2 + 1)-dimensional charged black hole in the Einstein-Gauss-Bonnet (EGB) gravity. In this paper, we test the validity of the weak cosmic censorship conjecture for the (2+1)-dimensional charged black hole in novel EGB theory derived recently by Henniger et al. (2021). We show that the minimum energy that particle can have at the horizon becomes negative for both an extremal and nearly-extremal BTZ black holes in EGB gravity. It is proven that both extremal and nearly-extremal (2 + 1) dimensional BTZ black hole could be overcharged in EGB theory, leading to the violation of the weak cosmic censorship conjecture (WCCC), which is in good agreement with the results obtained for the classical BTZ black hole. (c) 2022 Elsevier B.V. All rights reserved.

引用

页数：7

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