Criticality in driven cellular automata with defects
凝聚态物理
2015-06-25 v1
摘要
We study three models of driven sandpile-type automata in the presence of quenched random defects. When the dynamics is conservative, all these models, termed the random sites (A), random bonds (B), and random slopes (C), self-organize into a critical state. For Model C the concentration-dependent exponents are nonuniversal. In the case of nonconservative defects, the asymptotic state is subcritical. Possible defect-mediated nonequilibrium phase transitions are also discussed.
引用
@article{arxiv.cond-mat/9512049,
title = {Criticality in driven cellular automata with defects},
author = {Bosiljka Tadic and Ramakrishna Ramaswamy},
journal= {arXiv preprint arXiv:cond-mat/9512049},
year = {2015}
}
备注
13 pages, Latex, 6 PostScript figures included, all uuencoded Z-compressed tar