Quasinormal modes of rapidly rotating Ellis-Bronnikov wormholes
Fech Scen Khoo, Bahareh Azad, José Luis Blázquez-Salcedo, L. M. González-Romero, Burkhard Kleihaus, Jutta Kunz, Francisco Navarro-Lérida
Abstract
We present for the first time a study of the quasinormal modes of rapidly rotating Ellis-Bronnikov wormholes in general relativity. We compute the spectrum of the wormholes using a spectral decomposition of the metric perturbations on a numerical background. We focus on the ${M}_{z}=2$, 3 sector of the perturbations, and show that the triple isospectrality of the symmetric and static Ellis-Bronnikov wormhole is broken due to rotation, giving rise to a much richer spectrum than the spectrum of Kerr black holes. We do not find any instabilities for ${M}_{z}=2$, 3 perturbations.
Topics & Concepts
WormholePhysicsTheoretical physicsClassical mechanicsPhilosophyMathematical physicsPulsars and Gravitational Waves ResearchNonlinear Waves and SolitonsQuantum chaos and dynamical systems