Making near-extremal wormholes traversable

Fallows, Seamus; Ross, Simon F.

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
• Electronic ISSN: 1029-8479
• 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
• Public URL: https://durham-repository.worktribe.com/output/1251018