A new mean-field approximation is proposed for the sandpile model of Bak, Tang and Wiesenfeld and the distribution of heights in the self-organized critical state is calculated. We treat several series of successive topples to approximate various avalanches. In contrast to the previous mean-field th
Renormalization of a field theory for self-organized criticality
β Scribed by Juha Honkenen
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 528 KB
- Volume
- 145
- Category
- Article
- ISSN
- 0375-9601
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π SIMILAR VOLUMES
Self-organized criticality (SOC) occurs in systems consisting of a substrate or medium which can be locally stressed to a critical state. When the critical threshold is exceeded, the stress is distributed to the neighborhood around the locale, which can lead to critical states in the neighboring loc
Over the last century, many bird species have been introduced into the Hawaiian islands. The data indicate a scenario in which island communities build up to a critical number of species, above which avalanches of extinction occur. Plotting the distribution of extinction event sizes approximates a p
The sun provides an explosive, heavenly example of self-organized criticality. Sudden bursts of intense radiation emanate from rapid rearrangements of the magnetic ΓΏeld network in the corona. Avalanches are triggered by loops of ux that reconnect or snap into lower-energy conΓΏgurations when they are