A Unified Spectral Approach for Quasinormal Modes of Morris—Thorne Wormholes

Abstract

In this paper, we undertake a comprehensive examination of quasinormal modes (QNMs) linked to Morris-Thorne, also known as Bronnikov-Ellis wormholes, delving into scalar, electromagnetic, and gravitational perturbations using the spectral method. Our research corrects inaccuracies previously reported in the literature and addresses areas where the Wentzel—Kramers—Brillouin (WKB) approximation proves inadequate. Moreover, we introduce and evaluate a novel spectral technique designed to consolidate recent advancements in formulating QNM boundary conditions at both the wormhole throat and space-like infinity. This innovative approach bridges critical gaps in existing methodologies and enhances the accuracy and applicability of QNM analysis in the study of wormhole physics.

Keywords

Bibliographic record

BibTeX Citation

@article{Batic2024unifiedspectral,
  author = {Batic, D. and Dutykh, D.},
  title = {A Unified Spectral Approach for Quasinormal Modes of Morris—Thorne Wormholes},
  journal = {Class. Quantum Grav.},
  year = {2024},
  volume = {41},
  number = {21},
  pages = {215003},
  doi = {10.1088/1361-6382/ad7cb8},
  abstract = {In this paper, we undertake a comprehensive examination of quasinormal modes (QNMs) linked to Morris-Thorne, also known as Bronnikov-Ellis wormholes, delving into scalar, electromagnetic, and gravitational perturbations using the spectral method. Our research corrects inaccuracies previously reported in the literature and addresses areas where the Wentzel—Kramers—Brillouin (WKB) approximation proves inadequate. Moreover, we introduce and evaluate a novel spectral technique designed to consolidate recent advancements in formulating QNM boundary conditions at both the wormhole throat and space-like infinity. This innovative approach bridges critical gaps in existing methodologies and enhances the accuracy and applicability of QNM analysis in the study of wormhole physics.},
  keywords = {Boundary conditions, Quasinormal modes, Spectral method, Scalar perturbations, Electromagnetic perturbations, Morris-Thorne wormholes, Gravitational perturbations, gr-qc, Bronnikov-Ellis wormholes, WKB approximation, Wormhole physics}
}