论文标题
在线性秩序和弱宇宙审查猜想的磁性黑洞过度充电
Overcharging magnetized black holes at linear order and the weak cosmic censorship conjecture
论文作者
论文摘要
已经发现，如果将电荷和角动量的测试颗粒注入黑洞，则可能会违反弱宇宙审查制度的猜想。但是，在先前的研究中需要对粒子参数进行二阶校正和微调，这表明必须考虑自力和辐射效应。在本文中，我们首先考虑一个磁性电荷粒子落入一个极端的Bardeen黑洞中，该粒子是规则的（没有奇异性），并且中心有磁性单极。然后，我们研究了具有或没有奇异性的一般磁性黑洞。在所有情况下，我们都表明，带有磁性电荷的测试粒子可以使黑洞过度充电，从而导致违反弱宇宙审查的猜想。与文献中的先前参数相反，在我们的分析中不需要二阶校正，结果对粒子的参数不敏感。我们的工作表明，与二阶校正有关的自我强制效应可能无法帮助我们示例中挽救弱宇宙审查的猜想。
Evidences have been found that the weak cosmic censorship conjecture could be violated if test particles with charge and angular momentum are injected into a black hole. However, second-order corrections and fine-tunings on the particle's parameters are required in previous studies, indicating that self-force and radiative effects must be taken into account. In this paper, we first consider a magnetically charged particle falling into an extremal Bardeen black hole, which is regular (with no singularity) and has a magnetic monopole at the center. We then investigate a general class of magnetic black holes with or without singularities. In all the cases, we show that the test particle with magnetic charge could overcharge the black hole, causing possible violation of the weak cosmic censorship conjecture. In contrast to previous arguments in the literature, second-order corrections are not necessary in our analysis and the results are not sensitive to the particle's parameters. Our work indicates that the self-force effect, which is related to the second-order correction, may not help rescue the weak cosmic censorship conjecture in our examples.
