排除黑洞有效势中物质引起的隆起
Ruling out matter-induced bumps in black-hole effective potentials
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中文总结 AI 辅助
本研究通过分析各向异性流体模型，证明黑洞有效势中的次级隆起源于非物理物质构型，且不必然对应额外光环。
中文摘要 AI 辅助
围绕黑洞局域化的物质场可以在控制黑洞扰动的有效势中产生小的次级隆起，这可能导致准正则模谱不稳定和晚期回波。考虑到围绕球对称黑洞的各向异性流体的物理动机模型，我们表明这种次级隆起的出现伴随着奇异物质剖面或流体中发散的特性速度。这些特征表明相应的物质构型是非物理的。我们进一步证明，有效势中的次级隆起并不一定意味着时空中存在额外的光环。
英文摘要
Matter fields localized around black holes can produce small secondary bumps in the effective potentials governing black-hole perturbations, potentially leading to quasinormal-mode spectral instabilities and late-time echoes. Considering physically motivated models of anisotropic fluids surrounding a spherically symmetric black hole, we show that the appearance of such a secondary bump is accompanied by either singular matter profiles or divergent characteristic speeds in the fluid. These features indicate that the corresponding matter configurations are unphysical. We further demonstrate that a secondary bump in the effective potential does not necessarily imply the existence of additional light rings in the spacetime.
发表机构
- Sapienza Università di Roma（罗马第一大学）
- INFN, Sezione di Roma（意大利国家核物理研究所罗马分部）
机构由 AI 辅助整理，请以论文原文为准。
