Physics Letters A, 267(2–3), 174–178p. (2000) DOI:10.1016/S0375-9601(00)00098-0
A simple data analysis strategy based on the scoring of recurrences, allowed us to distinguish relatively short runs of (i) a chaotic system (logistic map), (ii) transcendental numbers (small pi, Greek), (iii) pseudo-random numbers, and (iv) physical random numbers (atmospheric noise). Beside the theoretical implications of distinguishing transcendental and pseudo-random numbers from physical noise, these results suggest a test
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