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arXiv 2401.07907gr-qcastro-ph.HEhep-th
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空间规则带电黑洞支持带电大质量标量云

Spatially regular charged black holes supporting charged massive scalar clouds

Shahar Hod

AI总结:

该论文证明空间规则带电ABG黑洞可支持带电大质量标量云,并在弱电荷与大质量场区域解析确定了共振谱参数区间。

摘要:

我们证明,与熟悉的带电Reissner-Nordström黑洞时空相反,空间规则的带电Ayón-Beato-García (ABG)黑洞时空可以支持带电标量云,即由线性化带电大质量标量场构成的空间规则静态物质构型。有趣的是,我们揭示了这样一个事实:在弱带电黑洞和大质量场的$Q/M\\)ll 1\ll Mμ$区域中,复合黑洞-场系统可以进行解析处理,在这种情况下,证明了无量纲物理参数$α\equiv{{qQ}\over{Mμ}}$必须位于窄区间$α\in\big(\sqrt{{{3240}\over{6859}}},{{16}\over{23}}\big)$内[这里$\{M,Q\}$是中心黑洞的质量和电荷,$\{μ,q\}$是所支持标量场的固有质量和电荷耦合常数]。特别地,我们明确证明,对于弱带电黑洞,复合带电ABG黑洞-带电大质量标量场云构型的离散共振谱$\{α(M,Q,μ,q;n\}^{n=\infty}_{n=0}$可以在eikonal大质量区域中解析确定。

英文摘要:

We prove that, as opposed to the familiar charged Reissner-Nordström black-hole spacetime, the spatially regular charged Ayón-Beato-García (ABG) black-hole spacetime can support charged scalar clouds, spatially regular stationary matter configurations which are made of linearized charged massive scalar fields. Interestingly, we reveal the fact that the composed black-hole-field system is amenable to an analytical treatment in the regime $Q/M\ll1\ll Mμ$ of weakly charged black holes and large-mass fields, in which case it is proved that the dimensionless physical parameter $α\equiv{{qQ}\over{Mμ}}$ must lie in the narrow interval $α\in\big(\sqrt{{{3240}\over{6859}}},{{16}\over{23}}\big)$ [here $\{M,Q\}$ are the mass and electric charge of the central black hole and $\{μ,q\}$ are the proper mass and charge coupling constant of the supported scalar field]. In particular, we explicitly prove that, for weakly charged black holes, the discrete resonance spectrum $\{α(M,Q,μ,q;n\}^{n=\infty}_{n=0}$ of the composed charged-ABG-black-hole-charged-massive-scalar-field cloudy configurations can be determined {\it analytically} in the eikonal large-mass regime.

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