|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'503'724
Articles rated: 2609
24 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Sandpile models and random walkers on finite lattices | | Yehiel Shilo
; Ofer Biham
; | | Date: |
24 Mar 2003 | | Journal: | Phys. Rev. E 67, 66102 (2003) | | Subject: | cond-mat | | Abstract: | Abelian sandpile models, both deterministic, such as the Bak, Tang, Wiesenfeld (BTW) model [P. Bak, C. Tang and K. Wiesenfeld, Phys. Rev. Lett. {f 59}, 381 (1987)], and stochastic, such as the Manna model [S.S. Manna, J. Phys. A {f 24}, L363 (1991)], are studied on finite square lattices with open boundaries. The avalanche size distribution $P_L(n)$ is calculated for a range of system sizes, $L$. The first few moments of this distribution are evaluated numerically and their dependence on the system size is examined. The sandpile models are conservative in the sense that grains are conserved in the bulk and can leave the system only through the boundaries. It is shown that the conservation law provides an interesting connection between sandpile models and random walk models. Using this connection, it is shown that the average avalanche sizes, $_L$, for the BTW and the Manna models are equal to each other, and both are equal to the average path-length of a random walker starting from a random initial site on the same lattice of size $L$. This is in spite of the fact that sandpile models with deterministic (BTW) and stochastic (Manna) toppling rules exhibit different critical exponents, indicating that they belong to different universality classes. | | Source: | arXiv, cond-mat/0303495 | | Other source: | [GID 1015930] pmid16241299 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER