Perturbing microscopic black holes inspired by noncommutativity

Autor:	D. Batic, N. G. Kelkar, M. Nowakowski, K. Redway
Jazyk:	angličtina
Rok vydání:	2019
Předmět:	Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Zdroj:	European Physical Journal C: Particles and Fields, Vol 79, Iss 7, Pp 1-12 (2019)
Druh dokumentu:	article
ISSN:	1434-6044 1434-6052
DOI:	10.1140/epjc/s10052-019-7084-x
Popis:	Abstract We probe into the instabilities of microscopic quantum black holes. For this purpose, we study the quasinormal modes (QNMs) for a massless scalar perturbation of the noncommutative geometry inspired Schwarzschild black hole. By means of a sixth order Wentzel–Kramers–Brillouin (WKB) approximation we show that the widely used WKB method does not converge in the critical cases where instabilities show up at the third order. By employing the inverted potential method, we demonstrate that the instabilities are an artifact of the WKB method. Finally, we discuss the usefulness of the asymptotic iteration method to find the QNMs.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/d88620276c6a437091a14c502208b66e Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF Plný text ve formátu HTML
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