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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Annals Of Physics

ISSN

0003-4916

e-ISSN

1096-035X

Svazek periodika

427

Číslo periodika v rámci svazku

April

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

„168425-1“-„168425-13“

Kód UT WoS článku

000634879800003

EID výsledku v databázi Scopus

2-s2.0-85102024533