KONOPLYA, Roman and A. ZHIDENKO. Analytic expressions for quasinormal modes and grey-body factors in the eikonal limit and beyond. Classical and Quantum Gravity. GB - Spojené království Velké Británie a, 2023, vol. 40, No 24, p. "245005-1"-"245005-16", 16 pp. ISSN 0264-9381. Available from: https://dx.doi.org/10.1088/1361-6382/ad0a52. |
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@article{76341, author = {Konoplya, Roman and Zhidenko, A.}, article_location = {GB - Spojené království Velké Británie a}, article_number = {24}, doi = {http://dx.doi.org/10.1088/1361-6382/ad0a52}, keywords = {quasinormal modes;transmission coefficients;grey-body factor;WKB formula;eikonal approximation}, language = {eng}, issn = {0264-9381}, journal = {Classical and Quantum Gravity}, title = {Analytic expressions for quasinormal modes and grey-body factors in the eikonal limit and beyond}, url = {https://iopscience.iop.org/article/10.1088/1361-6382/ad0a52}, volume = {40}, year = {2023} }
TY - JOUR ID - 76341 AU - Konoplya, Roman - Zhidenko, A. PY - 2023 TI - Analytic expressions for quasinormal modes and grey-body factors in the eikonal limit and beyond JF - Classical and Quantum Gravity VL - 40 IS - 24 SP - "245005-1"-"245005-16" EP - "245005-1"-"245005-16" SN - 02649381 KW - quasinormal modes;transmission coefficients;grey-body factor;WKB formula;eikonal approximation UR - https://iopscience.iop.org/article/10.1088/1361-6382/ad0a52 N2 - Although the WKB series converges only asymptotically and guarantees the exact result solely in the eikonal regime, we have managed to derive concise analytical expressions for the quasinormal modes and grey-body factors of black holes, expanding beyond the eikonal approximation. Remarkably, these expressions demonstrate unexpectedly strong accuracy. We suggest a comprehensive approach for deriving analytical expressions for grey-body factors and quasinormal modes at various orders beyond the eikonal approximation. Two cases are examined as examples: the Schwarzschild-de Sitter black hole and hairy black holes within the framework of Effective Field Theory. We have publicly shared a generic code that calculates analytical expressions for grey-body factors and quasinormal modes of spherical black holes. ER -
KONOPLYA, Roman and A. ZHIDENKO. Analytic expressions for quasinormal modes and grey-body factors in the eikonal limit and beyond. \textit{Classical and Quantum Gravity}. GB - Spojené království Velké Británie a, 2023, vol.~40, No~24, p.~''245005-1''-''245005-16'', 16 pp. ISSN~0264-9381. Available from: https://dx.doi.org/10.1088/1361-6382/ad0a52.
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