Gravitational ringing of rotating black holes in higher-derivative gravity

Cano, Pablo A.; Fransen, Kwinten; Hertog, Thomas; Maenaut, Simon

doi:10.1103/physrevd.105.024064

Cited by 64 publications

(27 citation statements)

References 79 publications

(112 reference statements)

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“…This feature has lead the search and analysis of QNM to be an important subject in the gravitationalwave literature. Hence, one can use gravitational-wave observations in order to test general relativity, examining for instance the validity of the "no-hair theorem" [74][75][76], and use the predictions of QNM properties to constrain and classify modified gravity theories [77][78][79][80][81][82][83][84][85]. Furthermore, the QNM frequency can also partly reveal the stability of spacetime geometry under small perturbations [86,87].…”

Section: Introductionmentioning

confidence: 99%

Quasinormal modes of black holes in f(T) gravity

Zhao¹,

Ren²,

Ilyas³

et al. 2022

Preprint

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We calculate the quasinormal modes (QNM) frequencies of a test massless scalar field around static black holes in f (T ) gravity. Focusing on quadratic f (T ) modifications, which is a good approximation for every realistic f (T ) theory, we first extract the spherically symmetric solutions using the perturbative method, imposing two ansätze for the metric functions, which suitably quantify the deviation from the Schwarzschild solution. Moreover, we extract the effective potential and then we calculate the QNM frequency of the obtained solutions. Firstly, we solve the Schrödinger-like equation numerically using the discretization method, and we extract the frequency and the time evolution of the dominant mode applying the function fit method. Secondly, we perform a semianalytical calculation by applying the third-order WKB approximation method. We show that the results for f (T ) gravity are different comparing to General Relativity, and in particular we obtain a different slope and period of the field decay behavior for different values of the model parameter. Hence, under the light of gravitational-wave observations of increasing accuracy from binary systems, the whole analysis could be used as an additional tool in order to test General Relativity and examine whether torsional gravitational modifications are possible.

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Section: Introductionmentioning

confidence: 99%

Quasinormal modes of black holes in f(T) gravity

Zhao¹,

Ren²,

Ilyas³

et al. 2022

Preprint

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“…extending the work in [398][399][400][401] to systematically include and classify all possible higher-dimension/higher-derivative operators that can appear as counterterms in gravitational theories, including those discussed using standard GR methods in e.g. [402][403][404], will aid both model-specific and model-independent studies of GW signals, both with regard to the inspiral and the ringdown phase, see also Snowmass White Paper [405] on UV constraints and IR physics.…”

Section: Future Directions and Challengesmentioning

confidence: 99%

Snowmass White Paper: Gravitational Waves and Scattering Amplitudes

Buonanno¹,

O’Connell²,

Roiban³

et al. 2022

Preprint

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We review recent progress and future prospects for harnessing powerful tools from theoretical high-energy physics, such as scattering amplitudes and effective field theory, to develop a precise and systematically improvable framework for calculating gravitational-wave signals from binary systems composed of black holes and/or neutron stars. This effort aims to provide state-of-the-art predictions that will enable high-precision measurements at future gravitational-wave detectors. In turn, applying the tools of quantum field theory in this new arena will uncover theoretical structures that can transform our understanding of basic phenomena and lead to new tools that will further the cycle of innovation. While still in a nascent stage, this research direction has already derived new analytic results in general relativity, and promises to advance the development of highly accurate waveform models for ever more sensitive detectors.

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“…More recently, QNMs have received renewed interest as valuable indicators of modifications of gravity [14], motivating their analysis in theories beyond GR. For instance, QNMs have been investigated in models of gravity with curvature corrections [15][16][17][18] as well as in scalar-tensor theories [19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Schwarzschild quasi-normal modes of non-minimally coupled vector fields

Garcia-Saenz,

Held,

Zhang

2022

Preprint

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We study perturbations of massive and massless vector fields on a Schwarzschild black-hole background, including a non-minimal coupling between the vector field and the curvature. The coupling is given by the Horndeski vector-tensor operator, which we show to be unique, also when the field is massive, provided that the vector has a vanishing background value.We determine the quasi-normal mode spectrum of the vector field, focusing on the fundamental mode of monopolar and dipolar perturbations of both even and odd parity, as a function of the mass of the field and the coupling constant controlling the non-minimal interaction. In the massless case, we also provide results for the first two overtones, showing in particular that the isospectrality between even and odd modes is broken by the nonminimal gravitational coupling.We also consider solutions to the mode equations corresponding to quasi-bound states and static configurations. Our results for quasi-bound states provide strong evidence for the stability of the spectrum, indicating the impossibility of a vectorization mechanism within our set-up. For static solutions, we analytically and numerically derive results for the electromagnetic susceptibilities (the spin-1 analogs of the tidal Love numbers), which we show to be non-zero in the presence of the non-minimal coupling.

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Gravitational ringing of rotating black holes in higher-derivative gravity

Cited by 64 publications

References 79 publications

Quasinormal modes of black holes in f(T) gravity

Quasinormal modes of black holes in f(T) gravity

Snowmass White Paper: Gravitational Waves and Scattering Amplitudes

Schwarzschild quasi-normal modes of non-minimally coupled vector fields

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