David P. Rosin, Damien Rontani, Daniel J. Gauthier
We have discovered a size-instability mechanism leading to the emergence of dynamical complexity in autonomous Boolean networks designed on a reconfigurable chip. Specifically, a phase transition from quiescence to chaos is observed in a network with fixed topology as the number of nodes increases beyond a threshold. Chaos results from an interplay of the propagation time delays, Boolean sensitivity of the nodes, and the network topology. We also describe a practical application of this mechanism for ultra-high-speed physical random numbers generation.
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http://arxiv.org/abs/1209.0142
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