Tripartite Entanglement Extraction from the Black Hole Vacuum
arXiv:2304.07847 · doi:10.1002/qute.202300125
Abstract
The first investigation of tripartite entanglement harvesting in the vicinity of a black hole is carried out. Working in the context of a static Bañados-Teitelboim-Zanelli (BTZ) black hole spacetime we find that it is possible to harvest tripartite entanglement in regions where harvesting of bipartite entanglement is known to be impossible due to intense Hawking radiation. In these situations, it implies that the harvested entanglement is of the Greenberger-Horne-Zeilinger (GHZ) type.
arXiv comment12 pages, 8 figures; (v2) matched to the final version
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