Hardy's nonlocality argument as witness for post-quantum correlation

摘要

Recently, Gallego et.al. [Phys. Rev. Lett 107, 210403 (2011)] proved that anyfuture information principle aiming at distinguishing between quantum andpost-quantum correlation must be intrinsically multipartite in nature. Weestablish similar result by using device independent success probability ofHardy's nonlocality argument for tripartite quantum system. We construct anexample of a tri-partite Hardy correlation which is post-quantum but satisfiesnot only all bipartite information principle but also the GYNI inequality.