论文标题
Kerr黑洞，轴子头发同步
Kerr black holes with synchronised axionic hair
论文作者
论文摘要
我们用同步的轴心发构建和分析Kerr黑洞（BHS）。这些是最近构建的旋转轴玻色子星ARXIV的BH概括：2005.05982。这样的BHS是具有QCD轴突样电势的复杂爱因斯坦 - 克莱因 - 戈登理论的静止，轴向对称，渐近平坦的溶液。它们在活动视野内外的任何地方都是常规的。电位的特征是两个参数：类似轴的粒子的质量，$ m_a $和衰减常数$ f_a $。限制$ f_a \ rightarrow \ infty $恢复了具有同步标量头发ARXIV的Kerr BHS的原始示例：1403.2757。对于$ f_a \ Lessim 1 $，非线性在潜力中的影响变得很重要。我们概述了解决方案的参数空间以及对它们的基本几何学和现象学特性的研究，以说明耦合的说明性值，从而产生了自我互动的不可忽视的影响。
We construct and analyse Kerr black holes (BHs) with synchronised axionic hair. These are the BH generalisations of the recently constructed rotating axion boson stars arXiv:2005.05982. Such BHs are stationary, axially symmetric, asymptotically flat solutions of the complex Einstein-Klein-Gordon theory with a QCD axion-like potential. They are regular everywhere on and outside the event horizon. The potential is characterised by two parameters: the mass of the axion-like particle, $m_a$ and the decay constant $f_a$. The limit $f_a \rightarrow \infty$ recovers the original example of Kerr BHs with synchronised scalar hair arXiv:1403.2757. The effects of the non-linearities in the potential become important for $f_a \lesssim 1$. We present an overview of the parameter space of the solutions together with a study of their basic geometric and phenomenological properties, for an illustrative value of the coupling that yields a non-negligible impact of the self-interactions.
