Universality of instability in the fundamental quasinormal modes of black holes

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorYangzhou University-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorMetropolitan State University-
Autor(es): dc.creatorQian, Wei-Liang-
Autor(es): dc.creatorLi, Guan-Ru-
Autor(es): dc.creatorDaghigh, Ramin G.-
Autor(es): dc.creatorRandow, Stefan-
Autor(es): dc.creatorYue, Rui-Hong-
Data de aceite: dc.date.accessioned2025-08-21T20:11:26Z-
Data de disponibilização: dc.date.available2025-08-21T20:11:26Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2025-01-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1103/PhysRevD.111.024047-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/300340-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/300340-
Descrição: dc.descriptionWe elaborate on a criterion for the emergence of instability in the fundamental mode recently observed by Cheung et al., as a universal phenomenon in the context of black hole perturbations. Such instability is characterized by an exponential spiral, deviating from the quasinormal frequencies due to an insignificant perturbation moving away from the compact object. Our analysis begins with a specific case involving a truncated Pöschl-Teller potential for which we derive an explicit form of the criterion. Notably, it is shown analytically, contrary to other cases studied in the literature, that the fundamental mode is stable. These derivations are then generalized to a broader context, embracing two underlying mathematical formalisms. Specifically, the spiral is attributed to either the poles in the black hole's reflection amplitude or the zeros in the transmission amplitude. Additionally, we revisit and then generalize a toy model in which perturbations to the effective potential are disjointed, demonstrating that such a configuration invariably leads to instability in the fundamental mode, and the resulting outward spiral always occurs in the counterclockwise direction. The derived criterion is not restricted to the fundamental mode but is generally relevant for the first few low-lying modes. We demonstrate numerically that the spiral's period and the frequency's relative deviation agree well with our analytical estimations.-
Descrição: dc.descriptionCenter for Gravitation and Cosmology College of Physical Science and Technology Yangzhou University-
Descrição: dc.descriptionEscola de Engenharia de Lorena Universidade de São Paulo, Lorena-
Descrição: dc.descriptionFaculdade de Engenharia de Guaratinguetá Universidade Estadual Paulista, Guaratinguetá-
Descrição: dc.descriptionNatural Sciences Department Metropolitan State University-
Descrição: dc.descriptionMathematics and Statistics Department Metropolitan State University-
Descrição: dc.descriptionFaculdade de Engenharia de Guaratinguetá Universidade Estadual Paulista, Guaratinguetá-
Idioma: dc.languageen-
Relação: dc.relationPhysical Review D-
???dc.source???: dc.sourceScopus-
Título: dc.titleUniversality of instability in the fundamental quasinormal modes of black holes-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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