Making near-extremal wormholes traversable

Fallows, Seamus; Ross, Simon F.

doi:10.1007/jhep12(2020)044

Making near-extremal wormholes traversable

Fallows, Seamus; Ross, Simon F.

Authors

Seamus Fallows seamus.fallows@durham.ac.uk
PGR Student Doctor of Philosophy

Professor Simon Ross s.f.ross@durham.ac.uk
Professor

Abstract

We construct a traversable wormhole from a charged AdS black hole by adding a coupling between the two boundary theories. We investigate how the effect of this deformation behaves in the extremal limit of the black hole. The black holes have finite entropy but an infinitely long throat in the extremal limit. We argue that it is still possible to make the throat traversable even in the extremal limit, but this requires either tuning the field for which we add a boundary coupling close to an instability threshold or scaling the strength of the coupling inversely with the temperature. In the latter case we show that the amount of information that can be sent through the wormhole scales with the entropy.

Citation

Fallows, S., & Ross, S. F. (2020). Making near-extremal wormholes traversable. Journal of High Energy Physics, 2020(12), Article 44. https://doi.org/10.1007/jhep12%282020%29044

Journal Article Type	Article
Acceptance Date	Oct 27, 2020
Online Publication Date	Dec 7, 2020
Publication Date	2020
Deposit Date	Mar 16, 2021
Publicly Available Date	Oct 21, 2021
Journal	Journal of High Energy Physics
Print ISSN	1126-6708
Publisher	Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Peer Reviewed	Peer Reviewed
Volume	2020
Issue	12
Article Number	44
DOI	https://doi.org/10.1007/jhep12%282020%29044

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Open Access . This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.