High-order matrix method with delimited expansion domain (2023)
- Authors:
- Autor USP: QIAN, WEILIANG - EEL
- Unidade: EEL
- DOI: 10.1088/1361-6382/acc50f
- Subjects: BURACOS NEGROS; COSMOLOGIA
- Keywords: black hole; quasinormal mode; matrix method
- Agências de fomento:
- Language: Inglês
- Abstract: Motivated by the substantial instability of the fundamental and high-overtone quasinormal modes (QNMs), recent developments regarding the notion of black hole pseudospectrum call for numerical results with unprecedented precision. This work generalizes and improves the matrix method for black hole QNMs to higher orders, specifically aiming at a class of perturbations to the metric featured by discontinuity intimately associated with the QNM structural instability. The approach is based on the mock-Chebyshev grid, which guarantees its convergence in the degree of the interpolant. In practice, solving for black hole QNMs is a formidable task. The presence of discontinuity poses a further difficulty so that many well-known approaches cannot be employed straightforwardly. Compared with other viable methods, the modified matrix method is competent in speed and accuracy. Therefore, the method serves as a helpful gadget for relevant studies.
- Imprenta:
- Publisher: IOP Science
- Publisher place: Bristol
- Date published: 2023
- Source:
- Título do periódico: Classical and quantum gravity
- ISSN: 0264-9381
- Volume/Número/Paginação/Ano: v.40, n.8, art.085019, p. 1-24, 2023
- Este periódico é de assinatura
- Este artigo é de acesso aberto
- URL de acesso aberto
- Cor do Acesso Aberto: green
-
ABNT
LIN, Kai e QIAN, Wei-Liang. High-order matrix method with delimited expansion domain. Classical and quantum gravity, v. 40, n. 8, p. 1-24, 2023Tradução . . Disponível em: https://doi.org/10.1088/1361-6382/acc50f. Acesso em: 15 maio 2024. -
APA
Lin, K., & Qian, W. -L. (2023). High-order matrix method with delimited expansion domain. Classical and quantum gravity, 40( 8), 1-24. doi:10.1088/1361-6382/acc50f -
NLM
Lin K, Qian W-L. High-order matrix method with delimited expansion domain [Internet]. Classical and quantum gravity. 2023 ;40( 8): 1-24.[citado 2024 maio 15 ] Available from: https://doi.org/10.1088/1361-6382/acc50f -
Vancouver
Lin K, Qian W-L. High-order matrix method with delimited expansion domain [Internet]. Classical and quantum gravity. 2023 ;40( 8): 1-24.[citado 2024 maio 15 ] Available from: https://doi.org/10.1088/1361-6382/acc50f - Onset of chaotic gravitational lensing in non-Kerr rotating black holes with quadrupole mass moment
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Informações sobre o DOI: 10.1088/1361-6382/acc50f (Fonte: oaDOI API)
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