Instability of hairy black holes in regularized 4-dimensional Einstein-Gauss-Bonnet gravity

研究成果: Article査読

1 被引用数 (Scopus)

抄録

In regularized 4-dimensional Einstein-Gauss-Bonnet (EGB) gravity derived from a Kaluza-Klein reduction of higher-dimensional EGB theory, we study the existence and stability of black hole (BH) solutions on a static and spherically symmetric background. We show that asymptotically-flat hairy BH solutions realized for a spatially-flat maximally symmetric internal space are unstable against linear perturbations for any rescaled GB coupling constant. This instability is present for the angular propagation of even-parity perturbations both in the vicinity of an event horizon and at spatial infinity. There is also a strong coupling problem associated with the kinetic term of even-parity perturbations vanishing everywhere.

本文言語English
論文番号137329
ジャーナルPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
833
DOI
出版ステータスPublished - 2022 10月 10

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学

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