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Universal quasinormal modes of black holes in the limit of large number of dimensions

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We show that in the limit where the number of spacetime dimensions D grows to infinity a very large class of black holes (including nonextremal, static, asymptotically flat ones, with any number of gauge-field charges, possibly coupled to dilatons) possess a universal set of quasinormal modes whose complex frequencies depend only on the horizon radius and no other black hole parameters. The damping ratio of these modes vanishes like D − 2 / 3 , so they are almost normal modes, or "quasiparticle" excitations of the black hole. The structure responsible for the existence of these modes at large D is also present very generally in other black holes.

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EMPARAN GARCÍA DE SALAZAR, Roberto a., TANABE, Kentaro. Universal quasinormal modes of black holes in the limit of large number of dimensions. _Physical Review D_. 2014. Vol. 89, núm. 6, pàgs. 064028. [consulta: 13 de febrer de 2026]. ISSN: 1550-7998. [Disponible a: https://hdl.handle.net/2445/131681]

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