Phys. Rev. E 66, 051306 (2002) [5 pages]Breakdown of self-organized criticality in sandpilesReceived 3 July 2002; published 20 November 2002 We introduce two sandpile models which show the same behavior of real sandpiles, that is, an almost self-organized critical behavior for small systems and a dominance of large avalanches as the system size increases. The systems become fully self-organized critical, with the critical exponents of the Bak, Tank, and Wiesenfeld model [P. Bak, C. Tang, and K. Wiesenfeld, Phys. Rev. Lett. 59, 381 (1987)] as the system parameters are changed, showing that they can make a bridge between the well known theoretical and numerical results and what is observed in real experiments. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevE.66.051306
DOI:
10.1103/PhysRevE.66.051306
PACS:
45.70.Ht, 05.65.+b, 91.45.Dh
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