A unified spectral approach for quasinormal modes of Lee—Wick black holes

Abstract

In this paper, we undertake a comprehensive examination of quasinormal modes linked to Lee-Wick black holes, delving into scalar, electromagnetic, and gravitational perturbations using the spectral method. Such black holes can display a rich structure of horizons, and our analysis considers all the representative scenarios, including extremal and non-extremal situations. In particular, we show that purely imaginary quasinormal modes emerge for extremal and near-extremal configurations, suggesting a rapid return to equilibrium without oscillation.

Keywords

Bibliographic record

BibTeX Citation

@article{Batic2024unifiedspectral,
  author = {Batic, D. and Dutykh, D. and Giacchini, B.L.},
  title = {A unified spectral approach for quasinormal modes of Lee—Wick black holes},
  journal = {Phys. Rev. D},
  year = {2024},
  volume = {110},
  pages = {084032--084032},
  doi = {10.1103/PhysRevD.110.084032},
  abstract = {In this paper, we undertake a comprehensive examination of quasinormal modes linked to Lee-Wick black holes, delving into scalar, electromagnetic, and gravitational perturbations using the spectral method. Such black holes can display a rich structure of horizons, and our analysis considers all the representative scenarios, including extremal and non-extremal situations. In particular, we show that purely imaginary quasinormal modes emerge for extremal and near-extremal configurations, suggesting a rapid return to equilibrium without oscillation.},
  keywords = {gr-qc}
}