哈密顿平均场模型:反常扩散还是正常扩散?
统计力学
2009-11-13 v1
摘要
我们研究了哈密顿平均场 (HMF) 模型的非平衡动力学,特别关注单粒子扩散的性质。正如我们将在此处解析证明的那样,如果所谓准稳态下的动量自相关可以用 q-指数拟合,那么当 q<2 时扩散应当是正常的,这与参考文献 A. Pluchino, A. Rapisarda, Progress in Theoretical Physics Supplement 162, 18 (2006); A. Pluchino, V. Latora, A. Rapisarda, Physica A 338, 60 (2004); A. Rapisarda, A. Pluchino, Europhysics News 36, 202 (2005) 中提出的数值实验解释相悖。
引用
@article{arxiv.0711.1660,
title = {The Hamiltonian Mean Field model: anomalous or normal diffusion?},
author = {Andrea Antoniazzi and Duccio Fanelli and Stefano Ruffo},
journal= {arXiv preprint arXiv:0711.1660},
year = {2009}
}
评论
Contributed paper for the international Conference on Complexity, Metastability, and Nonextensivity - CTNEXT 07. To appear in the AIP Conference Proceedings 965