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 approximate to 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) behavior. The profile fluctuations of the pile under different driving mechanisms are also discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 5983-5986 |
| Number of pages | 4 |
| Journal | Physical Review E |
| Volume | 61 |
| Publication status | Published - 2000 |