English

Kerr quasinormal modes and Hod's time-temperature bound

General Relativity and Quantum Cosmology 2007-05-23 v1

Abstract

We give an explicit expression for the frequencies of slowly damped quasinormal modes of near-extreme Kerr black holes. It follows from this expression that the near-extreme Kerr holes obey the Hod's bound: in the limit of maximal rotation, limsupωIS/Tπ/\lim \sup \omega_{IS}/T\leq \pi / \hbar, where ωIS\omega _{IS} is the decay rate of the slowest decaying quasinormal mode, TT is the black hole temperature. On the other hand, the bound is not saturated in the sense that liminfωIS/T<π/\lim \inf \omega_{IS}/T< \pi /\hbar is a strict inequality. {\it It remains unclear} whether the bound is saturated in the sense that limsupωIS/T=π/\lim \sup \omega_{IS}/T= \pi /\hbar.

Keywords

Cite

@article{arxiv.0705.1725,
  title  = {Kerr quasinormal modes and Hod's time-temperature bound},
  author = {A. Gruzinov},
  journal= {arXiv preprint arXiv:0705.1725},
  year   = {2007}
}
R2 v1 2026-06-21T08:27:35.048Z