Waiting-time distribution between avalanches and 1/f-noise: Experiments on a three dimensional pile of rice
نویسنده
چکیده
The first-return times in the dynamics of a three dimensional pile of rice are measured. Furthermore, the 1/f exponent of the avalanche dynamics is determined. These quantities taken together, are used to check general scaling relations for systems with extremal dynamics exhibiting self-organized criticality. We find that τfirst = 1 + a. Furthermore, we discuss the relation of the 1/f a exponent to the roughening of the pile surface. PACS. 05.65.+b Self-Organized Systems – 45.70.-n Granular Systems – 64.60.Ht Time-series analysis
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تاریخ انتشار 2004