Quasi normal modes of a Casimir--like traversable wormhole through the semi-analytical WKB approach
arXiv:2302.09141 · doi:10.1016/j.aop.2022.169128
Abstract
In this work, we implement the semi-analytical WKB method to explore the behaviour of a scalar field on a traversable wormhole space--time with a Casimir--like complexity reported in Eur. Phys. J. C 82, 420 (2022). We estimate the error in the computation of the quasi--normal frequencies of the scalar field at each order in the WKB and show that the order with the best accuracy is not unique. We compute the value of the quasinormal frequencies for the smallest estimated error. As an aside, we find that the imaginary part of the quasinormal modes frequencies approach to zero for the fundamental mode mimicking the so--called quasi--resonance observed for massive scalar fields in the Reissner--Nordström background.
References in corpus (22)
- Echoes of ECOs: gravitational-wave signatures of exotic compact objects and of quantum corrections at the horizon scale
- Higher order WKB formula for quasinormal modes and grey-body factors: recipes for quick and accurate calculations
- Echoes of Kerr-like wormholes
- Quasinormal modes, stability and shadows of a black hole in the 4D Einstein-Gauss-Bonnet gravity
- Traversable wormholes in Einstein-Dirac-Maxwell theory
- Casimir Wormholes
- Wormholes versus black holes: quasinormal ringing at early and late times
- Traversable Wormholes in General Relativity
- Humanly traversable wormholes
- Astrophysical Wormholes
- Wormholes without exotic matter: quasinormal modes, echoes and shadows
- Arbitrarily long-lived quasinormal modes in a wormhole background
- Scalar and axial quasinormal modes of massive static phantom wormholes
- Quasinormal modes and Hawking radiation of black holes in cubic gravity
- Greybody factor and quasinormal modes of Regular Black Holes
- Quasi-normal modes of bumblebee wormhole
- Quasinormal modes of black holes in Einstein-power-Maxwell theory
- Thin-shell traversable wormhole crafted from a regular black hole with asymptotically Minkowski core
- Generalized Absurdly Benign Traversable Wormholes powered by Casimir Energy
- Analytic formula for quasinormal modes in the near-extreme Kerr-Newman-de Sitter spacetime governed by a non-Pöschl-Teller potential
- Traversable wormholes with like--Casimir complexity supported with arbitrarily small amount of exotic matter
- Quasinormal modes of black holes with a scalar hair in Einstein-Maxwell-dilaton theory