Quasinormal modes from EFT of black hole perturbations with timelike scalar profile
Quasinormal modes from EFT of black hole perturbations with timelike scalar profile
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DOI：
10.1088/1475-7516/2023/07/050
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发表时间：
2023-04
影响因子：
6.4
通讯作者：
S. Mukohyama;Kazufumi Takahashi;Keitaro Tomikawa;Vicharit Yingcharoenrat
中科院分区：
文献类型：
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作者：
S. Mukohyama;Kazufumi Takahashi;Keitaro Tomikawa;Vicharit Yingcharoenrat
在标量-张量理论的背景下，最近建立了描述具有类时标量轮廓的任意背景几何上微扰的有效场论。在本文中，我们使用这种EFT研究的奇宇称扰动的静态和球对称黑洞背景的准正规频率。保持一组算子，可以容纳移位对称二次高阶标量张量理论，我们演示了两个例子的多毛黑洞的计算，其中一个是隐形Schwarzschild解，另一个是海沃德度规伴随着一个非平凡的标量场.我们强调，这是EFT的第一个唯象应用，打开了一个新的可能性，以测试广义相对论和修改后的引力理论在强引力制度。
The Effective Field Theory (EFT) of perturbations on an arbitrary background geometry with a timelike scalar profile was recently constructed in the context of scalar-tensor theories. In this paper, we use this EFT to study quasinormal frequencies of odd-parity perturbations on a static and spherically symmetric black hole background. Keeping a set of operators that can accommodate shift-symmetric quadratic higher-order scalar-tensor theories, we demonstrate the computation for two examples of hairy black holes, of which one is the stealth Schwarzschild solution and the other is the Hayward metric accompanied by a non-trivial scalar field. We emphasize that this is the first phenomenological application of the EFT, opening a new possibility to test general relativity and modified gravity theories in the strong gravity regime.