| Avalanche Dynamics in Quenched Random Directed Sandpile Models |
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| 作者姓名： | 潘贵军 张端明 殷艳萍 何敏华 |
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| 作者单位： | [1]Department of Physics, Huazhong University of Science and Technology, Wuhan 430074 [2]Department of Physics, Hubei University, Wuhan 430062 |
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| 基金项目： | Supported by the Sunshine Foundation of Wuhan City under Grant No 20045006071-40. |
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| 摘 要： |
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| 关 键 词： | 雪崩动态学 局部流平衡 淬灭模型 临界指数 Abelian确定性 |
| 收稿时间： | 2006-07-17 |
| 修稿时间： | 2006-07-17 |
Avalanche Dynamics in Quenched Random Directed Sandpile Models |
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| PAN Gui-Jun, ZHANG Duan-Ming, YIN Yan-Ping, HE Min-Hua.Avalanche Dynamics in Quenched Random Directed Sandpile Models[J].Chinese Physics Letters,2006,23(10):2811-2814. |
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| Authors: | PAN Gui-Jun ZHANG Duan-Ming YIN Yan-Ping HE Min-Hua |
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| Institution: | 1.Department of Physics, Huazhong University of Science and Technology, Wuhan 430074 ; 2.Department of Physics, Hubei University, Wuhan 430062 |
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| Abstract: | We numerically investigate the quenched random directed sandpile models which are local, conservative and Abelian. A local flow balance between the outflow of grains during a single toppling at a site and the total number of grains flowing into the same site plays an important role when all the nearest-neighbouring sites of the above-mentioned site topple for once. The quenched model has the same critical exponents with the Abelian deterministic directed sandpile model when the local flow balance exists, otherwise the critical exponents of this quenched model and the annealed Abelian random directed sandpile model are the same. These results indicate that the presence or absence of this local flow balance determines the universality class of the Abelian directed sandpile model. |
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