CHURILOVA, Mariia. Quasinormal modes of the test fields in the consistent 4D Einstein-Gauss-Bonnet-(anti)de Sitter gravity. Annals Of Physics. 2021, vol. 427, April, p. "168425-1"-"168425-13", 13 pp. ISSN 0003-4916. Available from: https://dx.doi.org/10.1016/j.aop.2021.168425.
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Basic information
Original name Quasinormal modes of the test fields in the consistent 4D Einstein-Gauss-Bonnet-(anti)de Sitter gravity
Authors CHURILOVA, Mariia (804 Ukraine, guarantor, belonging to the institution).
Edition Annals Of Physics, 2021, 0003-4916.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10308 Astronomy
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
WWW URL
RIV identification code RIV/47813059:19630/21:A0000143
Organization unit Institute of physics in Opava
Doi http://dx.doi.org/10.1016/j.aop.2021.168425
UT WoS 000634879800003
Keywords in English Black hole;Quasinormal mode;Gravity;Gauss-Bonnet
Tags 2022, FÚ, RIV22
Tags International impact, Reviewed
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 28/3/2022 11:38.
Abstract
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.
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