Dr Nabil Iqbal nabil.iqbal@durham.ac.uk
Professor
Towards traversable wormholes from force-free plasmas
Iqbal, Nabil; Ross, Simon F.
Authors
Professor Simon Ross s.f.ross@durham.ac.uk
Professor
Abstract
The near-horizon region of magnetically charged black holes can have very strong magnetic fields. A useful low-energy effective theory for fluctuations of the fields, coupled to electrically charged particles, is force-free electrodynamics. The low energy collective excitations include a large number of Alfven wave modes, which have a massless dispersion relation along the field worldlines. We attempt to construct traversable wormhole solutions using the negative Casimir energy of the Alfven wave modes, analogously to the recent construction using charged massless fermions. The behaviour of massless scalars in the near-horizon region implies that the size of the wormholes is strongly restricted and cannot be made large, even though the force free description is valid in a larger regime.
Citation
Iqbal, N., & Ross, S. F. (2022). Towards traversable wormholes from force-free plasmas. SciPost Physics, 12(3), Article 086. https://doi.org/10.21468/scipostphys.12.3.086
Journal Article Type | Article |
---|---|
Acceptance Date | Feb 4, 2022 |
Online Publication Date | Mar 9, 2022 |
Publication Date | 2022-03 |
Deposit Date | Apr 22, 2022 |
Publicly Available Date | Mar 28, 2024 |
Journal | SciPost Physics. |
Print ISSN | 2542-4653 |
Publisher | SciPost |
Peer Reviewed | Peer Reviewed |
Volume | 12 |
Issue | 3 |
Article Number | 086 |
DOI | https://doi.org/10.21468/scipostphys.12.3.086 |
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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/
Copyright Statement
Copyright N. Iqbal and S. F. Ross
This work is licensed under the Creative Commons
Attribution 4.0 International License.
Published by the SciPost Foundation
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