Massive scalar field perturbation on Kerr black holes in dynamical Chern–Simons gravity

We study massive scalar field perturbation on Kerr black holes in dynamical Chern–Simons gravity by performing a ( 2 + 1 ) -dimensional simulation. Object pictures of the wave dynamics in time domain are obtained. The tachyonic instability is found to always occur for any nonzero black hole spin and...

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Published inThe European physical journal. C, Particles and fields Vol. 81; no. 5; pp. 1 - 7
Main Author Zhang, Shao-Jun
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.05.2021
Springer
Springer Nature B.V
SpringerOpen
Subjects
Astronomy
Astrophysics and Cosmology
Black holes
Coupling
Dynamic stability
Elementary Particles
Expanding universe theory
Hadrons
Heavy Ions
Measurement Science and Instrumentation
Nuclear Energy
Nuclear Physics
Perturbation
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Regular Article - Theoretical Physics
Scalars
String Theory
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Summary:We study massive scalar field perturbation on Kerr black holes in dynamical Chern–Simons gravity by performing a ( 2 + 1 ) -dimensional simulation. Object pictures of the wave dynamics in time domain are obtained. The tachyonic instability is found to always occur for any nonzero black hole spin and any scalar field mass as long as the coupling constant exceeds a critical value. The presence of the mass term suppresses or even quench the instability. The quantitative dependence of the onset of the tachyonic instability on the coupling constant, the scalar field mass and the black hole spin is given numerically.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-021-09249-8