Detailed Information on Publication Record
2023
Quasinormal spectrum in the asymptotically safe gravity
ZINHAILO, Antonina FrantsivnaBasic information
Original name
Quasinormal spectrum in the asymptotically safe gravity
Authors
ZINHAILO, Antonina Frantsivna (804 Ukraine, guarantor, belonging to the institution)
Edition
Opava, Proceedings of RAGtime 23-25: Workshops on black holes and neutron stars, p. 205-211, 7 pp. 2023
Publisher
Slezská univerzita v Opavě, Fyzikální ústav v Opavě
Other information
Language
English
Type of outcome
Stať ve sborníku
Field of Study
10308 Astronomy
Country of publisher
Czech Republic
Confidentiality degree
není předmětem státního či obchodního tajemství
Publication form
printed version "print"
References:
RIV identification code
RIV/47813059:19630/23:A0000330
Organization unit
Institute of physics in Opava
ISBN
978-80-7510-577-6
ISSN
Keywords in English
asymptotically safe gravity; outburst of overtones; quasinormal modes; Regular spacetimes
Tags
Tags
International impact, Reviewed
Změněno: 29/2/2024 12:15, Mgr. Pavlína Jalůvková
Abstract
V originále
Asymptotically safe gravity is based on the idea of the dependence of the gravitational coupling upon the distance from the origin, approaching its classical value in the weak field regime. We consider three cases of identifying the cut-off parameter in the asymptotically safe gravity, leading to the three distinctive models for black holes. We find that the deviation of the fundamental mode from the Schwarzschild limit is a few per cent, in contrast to the higher overtones, where the deviation reaches hundreds of per cent, even when the fundamental mode almost coincides with the Schwarzschild mode. This behavior is connected with the fact that the quantum correction to the black hole spacetime is strong near the event horizon but quickly falls off with distance and is negligible near the peak of the effective potential surrounding the black hole.