論文

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2021年9月15日

Bound on the Lyapunov exponent in Kerr-Newman black holes via a charged particle

Physical Review D
  • Naoto Kan
  • ,
  • Bogeun Gwak

105
2
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1103/PhysRevD.105.026006
出版者・発行元
American Physical Society ({APS})

We investigate the conjecture on the upper bound of the Lyapunov exponent for
the chaotic motion of a charged particle around a Kerr-Newman black hole. The
Lyapunov exponent is closely associated with the maximum of the effective
potential with respect to the particle. We show that when the angular momenta
of the black hole and particle are considered, the Lyapunov exponent can exceed
the conjectured upper bound. This is because the angular momenta change the
effective potential and increase the magnitude of the chaotic behavior of the
particle. Furthermore, the location of the maximum is also related to the value
of the Lyapunov exponent and the extremal and non-extremal states of the black
hole.

リンク情報
DOI
https://doi.org/10.1103/PhysRevD.105.026006
arXiv
http://arxiv.org/abs/arXiv:2109.07341
URL
http://arxiv.org/abs/2109.07341v2
URL
http://arxiv.org/pdf/2109.07341v2 本文へのリンクあり
ID情報
  • DOI : 10.1103/PhysRevD.105.026006
  • ISSN : 2470-0010
  • ISSN : 2470-0029
  • ORCIDのPut Code : 114356272
  • arXiv ID : arXiv:2109.07341

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