Phys. Rev. A 46, R4475–R4478 (1992)Statistical signatures of self-organization
A simple method for testing whether broadband noise comes from driven dynamical effects (rather than equilibrium fluctuations) is described. Asymmetrical higher-order time correlation functions can violate detailed balance, providing a key signature of dynamical effects. Simulations of a one-dimensional sandpile model are used for an initial illustration. Also, a hitherto unreported phenomenon—growth of the non-Gaussian nature of the statistics with system size—is found and attributed to the presence of correlations on the scale of the whole system. © 1992 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.46.R4475
DOI:
10.1103/PhysRevA.46.R4475
PACS:
05.70.Ln, 05.40.+j
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