Power spectra of self-organized critical sandpiles

@inproceedings{Laurson2005PowerSO,
  title={Power spectra of self-organized critical sandpiles},
  author={Lasse Laurson and Mikko Alava and Stefano Zapperi},
  year={2005}
}
We analyze the power spectra of avalanches in two classes of s elf-organized critical sandpile models, the Bak-Tang-Wiesenfeld model a nd the Manna model. We show that these decay with a 1/f power law, where the exponent value α is significantly smaller than2 and equals the scaling exponent relating the avalanche size to ts duration. We discuss the basic ingredients behind this result, such as the scalin g of the average avalanche shape. PACS numbers: 05.65.+b,45.70.Ht,05.40.Ca Power spectra of… CONTINUE READING
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