A multipartite device-independent QKD protocol generates shared keys directly from measurement settings certified by maximal violation of the Hardy paradox, achieving positive key rates and higher pairwise rates.
Toner, Monogamy of non-local quantum correlations, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences465,59(2009)
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Multipartite Hardy paradox unlocks device-independent key sharing
A multipartite device-independent QKD protocol generates shared keys directly from measurement settings certified by maximal violation of the Hardy paradox, achieving positive key rates and higher pairwise rates.