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@article{49404, author = {Churilova, Maria and Stuchlík, Zdeněk}, article_number = {7}, doi = {http://dx.doi.org/10.1088/1361-6382/ab7717}, keywords = {black hole; quasinormal mode; wormhole; echo}, language = {eng}, issn = {0264-9381}, journal = {Classical and Quantum Gravity}, title = {Ringing of the regular black-hole/wormhole transition}, url = {https://iopscience.iop.org/article/10.1088/1361-6382/ab7717}, volume = {37}, year = {2020} }
TY - JOUR ID - 49404 AU - Churilova, Maria - Stuchlík, Zdeněk PY - 2020 TI - Ringing of the regular black-hole/wormhole transition JF - Classical and Quantum Gravity VL - 37 IS - 7 SP - "075014-1"-"075014-12" EP - "075014-1"-"075014-12" SN - 02649381 KW - black hole KW - quasinormal mode KW - wormhole KW - echo UR - https://iopscience.iop.org/article/10.1088/1361-6382/ab7717 N2 - 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. ER -
CHURILOVA, Maria a Zdeněk STUCHLÍK. Ringing of the regular black-hole/wormhole transition. \textit{Classical and Quantum Gravity}. 2020, roč.~37, č.~7, s.~''075014-1''-''075014-12'', 12 s. ISSN~0264-9381. Dostupné z: https://dx.doi.org/10.1088/1361-6382/ab7717.
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