Comment on “Some exact quasinormal frequencies of a massless scalar field in Schwarzschild spacetime” - INSPIRE

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Comment on “Some exact quasinormal frequencies of a massless scalar field in Schwarzschild spacetime”

Rodrigo Panosso Macedo
(
- Queen Mary, U. of London, Math. Sci.
)

Jul 16, 2018

5 pages

Published in:

Phys.Rev.D 99 (2019) 8, 088501

Published: Apr 18, 2019

e-Print:

1807.05940 [gr-qc]

DOI:

10.1103/PhysRevD.99.088501

View in:

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Abstract: (APS)

A new branch of quasinormal modes for a massless scalar field propagating on the Schwarzschild spacetime was recently announced [D. Batic, M. Nowakowski, and K. Redway, Phys. Rev. D 98, 024017 (2018)PRVDAQ2470-001010.1103/PhysRevD.98.024017]. We review the quasinormal modes characterization and arguments and identify the flaws in their proof. Then, we preset explicit counterexamples to such arguments. Finally, we study the modes via alternative methods and do not find the new branch. We conclude against their interpretation.

Note:

6 pages, 2 figures. Comment on gr-qc:1807.04513. Match published version

field theory: scalar
space-time: Schwarzschild
decay: time
quasinormal mode
numerical calculations

References(13)

Figures(4)

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