Volume 128, Number 6, December 2019
|Number of page(s)||7|
|Published online||07 February 2020|
Linearized stability of Bardeen-de Sitter thin-shell wormholes
Department of Physics, Faculty of Science, Cairo University - Giza, 12613, Egypt and Department of Physics, University of Miami - Coral Gables, FL 33146, USA
Received: 27 September 2019
Accepted: 13 January 2020
A thin-shell wormhole is crafted by the cut-and-paste method of two Bardeen-de Sitter black holes using the Darmois-Israel formalism. Energy conditions are considered for different values of magnetic charge while both mass and cosmological constant are fixed. The attractive and repulsive characteristics of the throat of the thin-shell wormhole are also examined through the radial acceleration. Dynamics and stability of the wormhole are studied around the static solutions of the linearized radial perturbations at the throat of the wormhole. The regions of stability are determined by checking out the condition of concavity of the potential as a function in the throat radius for different values of magnetic charges.
PACS: 04.90.+e – Other topics in general relativity and gravitation (restricted to new topics in section 04) / 04.20.-q – Classical general relativity / 04.20.Gz – Spacetime topology, causal structure, spinor structure
© EPLA, 2020
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