$1/f^{\alpha}$ fluctuations in a ricepile model

Beijing Normal University); Shu-dong Zhang (Inst. Low Ener. Nucl. Phys.

arxiv: cond-mat/0002270 · v2 · submitted 2000-02-17 · ❄️ cond-mat.stat-mech · cond-mat.dis-nn· nlin.AO

1/f^(α) fluctuations in a ricepile model

Shu-dong Zhang (Inst. Low Ener. Nucl. Phys. , Beijing Normal University) This is my paper

classification ❄️ cond-mat.stat-mech cond-mat.dis-nnnlin.AO

keywords alphapileaddedfluctuationsgrainsmodelpowerricepile

0 comments

read the original abstract

The temporal fluctuation of the average slope of a ricepile model is investigated. It is found that the power spectrum $S(f)$ scales as $1/f^{\alpha}$ with $\alpha\approx 1.3$ when grains of rice are added only to one end of the pile. If grains are randomly added to the pile, the power spectrum exhibits $1/f^2$ behaviour. The profile fluctuations of the pile under different driving mechanisms are also discussed.

This paper has not been read by Pith yet.

1/f^(α) fluctuations in a ricepile model

discussion (0)