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Noncommutative scalar field in the nonextremal Reissner-Nordström background: Quasinormal mode spectrum

Dimitrijević-Ćirić, Marija; Konjik, Nikola; Samsarov, Anđelo (2020) Noncommutative scalar field in the nonextremal Reissner-Nordström background: Quasinormal mode spectrum. Physical Review D - Particles, Fields, Gravitation and Cosmology, 101 . ISSN 24700010

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In our previous work [M. D. C´iric´ et al., Classical Quantum Gravity 35, 175005 (2018)] we constructed a model of a noncommutative, charged, and massive scalar field based on the angular twist. Then we used this model to analyze the motion of the scalar field in the Reissner-Nordström black hole background. In particular, we determined the quasinormal mode (QNM) spectrum analytically in the near-extremal limit. To broaden our analysis, in this paper we apply a well-defined numerical method, the continued fraction method, and calculate the QNM spectrum for a nonextremal Reissner-Nordström black hole. To check the validity of our analytic calculations, we compare results of the continued fraction method in the near extremal limit with the analytic results obtained in the previous paper. We find that the results are in good agreement. For completeness, we also study the QNM spectrum in the Wentzel-Kramers-Brillouin approximation.

Item Type: Article
Uncontrolled Keywords: NC scalar quasinormal modes; RN black hole; WKB; continued fraction
NATURAL SCIENCES > Physics > Physics of Elementary Particles and Fields
NATURAL SCIENCES > Physics > Astronomy and Astrophysics
Divisions: Theoretical Physics Division
Depositing User: Anđelo Samsarov
Date Deposited: 01 Dec 2021 11:50
DOI: 10.1103/PhysRevD.101.116009

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