Quasinormal modes of black holes in f(Q) gravity

IF 4.2 2区物理与天体物理 Q2 PHYSICS, PARTICLES & FIELDS

The European Physical Journal C Pub Date : 2023-08-07 DOI:10.1140/epjc/s10052-023-11881-5

Dhruba Jyoti Gogoi, Ali Övgün, M. Koussour

引用次数: 7

Abstract

In this work, we have studied the quasinormal modes of a black hole in a model of the type \(f(Q)=\underset{n}{\sum }a_{n}\left( Q-Q_{0}\right) ^{n} \) in f(Q) gravity by using a recently introduced method known as Bernstein spectral method and confirmed the validity of the method with the help of well known Padé averaged higher order WKB approximation method. Here we have considered scalar perturbation and electromagnetic perturbation in the black hole spacetime and obtained the corresponding quasinormal modes. We see that for a non-vanishing nonmetricity scalar \(Q_0\), quasinormal frequencies in scalar perturbation are greater than those in electromagnetic perturbation scenarios. On the other hand, the damping rate of gravitational waves is higher for electromagnetic perturbation. To confirm the quasinormal mode behaviour, we have also investigated the time domain profiles for both types of perturbations.

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f(Q)引力下黑洞的拟正态模式

本文采用Bernstein谱法研究了f(Q)引力中\(f(Q)=\underset{n}{\sum }a_{n}\left( Q-Q_{0}\right) ^{n} \)型模型中黑洞的拟正态模态，并借助著名的pad平均高阶WKB近似法证实了该方法的有效性。本文考虑了黑洞时空中的标量摄动和电磁摄动，得到了相应的准正态模态。我们发现，对于非零非度量标量\(Q_0\)，标量摄动下的拟非正常频率大于电磁摄动下的拟非正常频率。另一方面，电磁扰动下引力波的阻尼率更高。为了证实准正模态行为，我们还研究了这两种扰动的时域分布。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

The European Physical Journal C 物理-物理：粒子与场物理

CiteScore

8.10

自引率

15.90%

发文量

1008

审稿时长

2-4 weeks

期刊介绍： Experimental Physics I: Accelerator Based High-Energy Physics Hadron and lepton collider physics Lepton-nucleon scattering High-energy nuclear reactions Standard model precision tests Search for new physics beyond the standard model Heavy flavour physics Neutrino properties Particle detector developments Computational methods and analysis tools Experimental Physics II: Astroparticle Physics Dark matter searches High-energy cosmic rays Double beta decay Long baseline neutrino experiments Neutrino astronomy Axions and other weakly interacting light particles Gravitational waves and observational cosmology Particle detector developments Computational methods and analysis tools Theoretical Physics I: Phenomenology of the Standard Model and Beyond Electroweak interactions Quantum chromo dynamics Heavy quark physics and quark flavour mixing Neutrino physics Phenomenology of astro- and cosmoparticle physics Meson spectroscopy and non-perturbative QCD Low-energy effective field theories Lattice field theory High temperature QCD and heavy ion physics Phenomenology of supersymmetric extensions of the SM Phenomenology of non-supersymmetric extensions of the SM Model building and alternative models of electroweak symmetry breaking Flavour physics beyond the SM Computational algorithms and tools...etc.