Physical significance of the black hole quasinormal mode spectra instability
Apr 1, 2024
9 pages
Published in:
- Phys.Rev.D 110 (2024) 2, 024016
- Published: Jul 8, 2024
e-Print:
- 2404.01374 [gr-qc]
DOI:
- 10.1103/PhysRevD.110.024016 (publication)
View in:
Citations per year
Abstract: (APS)
It has been shown, via specific examples and a pseudospectrum analysis, that the black hole quasinormal spectra are unstable. The implication of such a result for gravitational-wave physics and of our understanding of black holes is, still, unclear. The purpose of this work is twofold: (i) we show that some of the setups leading to instabilities are unphysical and triggered by exotic matter or extreme spacetimes; (ii) nevertheless, we also show simple examples of compelling physical scenarios leading to spectral instabilities. Our results highlight the importance of understanding the overtone content of time-domain waveforms, and their detectability.Note:
- 9 pages, 3 figures
- quasinormal mode: spectrum
- black hole: quasinormal mode
- matter: exotic
- stability
- spectral
- space-time
- gravitational radiation
- wave function
- field theory: scalar: massive
- Klein-Gordon equation
References(68)
Figures(4)
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