Universal 1/f Noise from Dissipative SOC Models
P. De Los Rios, Y.-C. Zhang (Universite de Fribourg, Switzerland)
TL;DR
This paper presents a dissipative self-organized criticality model that reproduces universal 1/f noise characteristics, including dimension-independent exponents and no apparent low-frequency cutoff.
Contribution
The authors introduce a new SOC-based model that captures the universal features of 1/f noise, emphasizing dissipation and activation-deactivation processes.
Findings
Model reproduces hyper-universality of 1/f noise in 1D and 2D
Power spectrum shows no low-frequency cutoff
Exponents are independent of system dimension
Abstract
We introduce a model able to reproduce the main features of 1/f noise: hyper-universality (the power-law exponents are independent on the dimension of the system; we show here results in d=1,2) and apparent lack of a low-frequency cutoff in the power spectrum. Essential ingredients of this model are an activation-deactivation process and dissipation.
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