| 莱维噪声诱发的速度双模分布 |
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| 引用本文： | 刘剑,包景东.莱维噪声诱发的速度双模分布[J].强激光与粒子束,2013,25(1):245-247. |
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| 作者姓名： | 刘剑 包景东 |
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| 作者单位： | 1.北京师范大学 物理系, 北京 1 00875 |
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| 基金项目： | Supported by National Natural Science Foundation of China (11175021) |
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| 摘 要： | 研究了非线性阻尼驱动的惯性莱维飞行在自由势场中的反常输运。通过引入依赖于速度的非线性阻尼，长程跳跃的莱维粒子被束缚，粒子的动力学行为由发散收敛为与时间呈正比的正常扩散。观察到在自由势场中莱维飞行的速度的定态概率分布呈双模分布形式，更为重要的是，观察到双模形式与莱维系数及非线性阻尼系数相关。
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| 关 键 词： | 莱维飞行 非线性阻尼 反常输运 双模分布 |
| 收稿时间： | 2012/6/26 |
Bimodal velocity distribution induced by Levy noise |
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| Liu Jian,Bao Jingdong.Bimodal velocity distribution induced by Levy noise[J].High Power Laser and Particle Beams,2013,25(1):245-247. |
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| Authors: | Liu Jian Bao Jingdong |
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| Affiliation: | 1.Department of Physics,Beijing Normal University,Beijing 100875,China |
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| Abstract: | Anomalous transport of inertial Levy flight subject to nonlinear friction in force-free potential is studied. By introducing velocity-dependent nonlinear friction, long-jump Levy particles are constrained, and the dynamical behavior of the particles is changed to normal diffusion. It is observed that velocity probability distribution shows bimodal model distribution. Moreover, the bimodal model is connected with Levy index and nonlinear index. |
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| Keywords: | Levy flight nonlinear friction anomalous transport bimodal model distribution |
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