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Unbounded randomness certification using sequences of measurements
Physical Review A
Unpredictability, or randomness, of the outcomes of measurements made on an entangled state can be certified provided that the statistics violate a Bell inequality. In the standard Bell scenario where each party performs a single measurement on its share of the system, only a finite amount of randomness, of at most 4 log_2 d bits, can be certified from a pair of entangled particles of dimension d. Our work shows that this fundamental limitation can be overcome using sequences of (nonprojective)doi:10.1103/physreva.95.020102 fatcat:bat7btizprbnxp7d6iydqui3dq