Quasinormal modes of the test fields in the consistent 4D Einstein-Gauss-Bonnet-(anti)de Sitter gravity

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19630%2F21%3AA0000143" target="_blank" >RIV/47813059:19630/21:A0000143 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0003491621000312?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0003491621000312?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.aop.2021.168425" target="_blank" >10.1016/j.aop.2021.168425</a>

Result language
angličtina
Original language name
Quasinormal modes of the test fields in the consistent 4D Einstein-Gauss-Bonnet-(anti)de Sitter gravity
Original language description
The regularization proposed in Glavan and Lin (2020) led to the black hole solutions which turned out to be the solutions of the consistent well-defined 4-dimensional Einstein-Gauss-Bonnet theory of gravity suggested in Aoki et al. (2020). Recently the quasinormal modes of bosonic and fermionic fields for this theory were studied. Here we calculate quasinormal frequencies of the test scalar, electromagnetic and Dirac fields for the spherically symmetric black hole in the consistent 4D Einstein-Gauss-Bonnet-de Sitter and anti-de Sitter theories. The values of the quasinormal modes, calculated by the sixth order WKB method with Pade approximants and the time-domain integration, show that both real oscillation frequency and the damping rate are suppressed by increasing of the cosmological constant. While the stability of the scalar and electromagnetic fields follows directly from the positive definiteness of the effective potential, there is no such positive definiteness for the Dirac field. Here, with the help of the time domain integration, taking into account all the modes, we demonstrate stability of the Dirac field in 4D Einstein-Gauss-Bonnet-de Sitter and anti-de Sitter theories.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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