Wormholes without exotic matter: Quasinormal modes, echoes and shadows

@article{58062,
   author = {Churilova, Mariia and Konoplya, Roman and Stuchlík, Zdeněk and Zhidenko, A.},
   article_location = {GB - Spojené království Velké Británie a},
   article_number = {October},
   doi = {http://dx.doi.org/10.1088/1475-7516/2021/10/010},
   keywords = {Wormholes;gravitational waves;theory;gravity},
   language = {eng},
   issn = {1475-7516},
   journal = {Journal of Cosmology and Astroparticle Physics},
   title = {Wormholes without exotic matter: Quasinormal modes, echoes and shadows},
   url = {https://iopscience.iop.org/article/10.1088/1475-7516/2021/10/010},
   volume = {10},
   year = {2021}
}

TY  - JOUR
ID  - 58062
AU  - Churilova, Mariia - Konoplya, Roman - Stuchlík, Zdeněk - Zhidenko, A.
PY  - 2021
TI  - Wormholes without exotic matter: Quasinormal modes, echoes and shadows
JF  - Journal of Cosmology and Astroparticle Physics
VL  - 10
IS  - October
SP  - "010-1"-"010-17"
EP  - "010-1"-"010-17"
SN  - 14757516
KW  - Wormholes;gravitational waves;theory;gravity
UR  - https://iopscience.iop.org/article/10.1088/1475-7516/2021/10/010
N2  - An analytical solution representing traversable asymptotically flat and symmetric wormholes was obtained without adding exotic matter in two different theories independently: in the Einstein-Maxwell-Dirac theory and in the second Randall-Sundrum brane-world model. Further, a smooth normalizable asymmetric wormhole solution has been recently obtained numerically in the Einstein-Maxwell-Dirac theory. Using the time-domain integration method we study quasinormal ringing of all these wormholes with emphasis to the regime of mimicking the near extremal Reissner-Nordstrom black holes, which is characterised by echoes. In addition, we calculate radius of shadows cast by these wormholes.
ER  - 

CHURILOVA, Mariia, Roman KONOPLYA, Zdeněk STUCHLÍK and A. ZHIDENKO. Wormholes without exotic matter: Quasinormal modes, echoes and shadows. \textit{Journal of Cosmology and Astroparticle Physics}. GB - Spojené království Velké Británie a, 2021, vol.~10, October, p.~''010-1''-''010-17'', 17 pp. ISSN~1475-7516. Available from: https://dx.doi.org/10.1088/1475-7516/2021/10/010.