J 2020

Ringing of the regular black-hole/wormhole transition

CHURILOVA, Maria and Zdeněk STUCHLÍK

Basic information

Original name

Ringing of the regular black-hole/wormhole transition

Authors

CHURILOVA, Maria (804 Ukraine, belonging to the institution) and Zdeněk STUCHLÍK (203 Czech Republic, belonging to the institution)

Edition

Classical and Quantum Gravity, 2020, 0264-9381

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10308 Astronomy

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

RIV identification code

RIV/47813059:19630/20:A0000030

Organization unit

Institute of physics in Opava

DOI

http://dx.doi.org/10.1088/1361-6382/ab7717

UT WoS

000518962300001

Keywords in English

black hole; quasinormal mode; wormhole; echo

Tags

, FÚ2020, GA19-03950S, RIV21

Tags

International impact, Reviewed

Links

GA19-03950S, research and development project.
Změněno: 19/4/2021 14:11, Mgr. Pavlína Jalůvková

Abstract

V originále

A simple one-parameter generalization of the Schwarzschild spacetime was recently suggested by A Simpson and M Visser [2019 J. Cosmol. Astropart. Phys. JCAP02(2019)042] as a toy model describing the regular black hole and traversable wormhole states separated by the border (one-way wormhole) state. We study quasinormal modes of all the three states and show that the black-hole/wormhole transition is characterized by echoes, while the remnant of the black hole state is kept in the time-domain profile of the wormhole perturbation at the initial stage of the exponential fall off. Calculations of quasinormal modes using the WKB method with Pade expansion and the time-domain integration are in good agreement. An analytical formula governing quasinormal modes in the eikonal regime is given.
Displayed: 24/12/2024 04:25