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arXiv 1105.2618cond-mat.stat-mech
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一类具有两个守恒量系统的反常扩散

Anomalous diffusion for a class of systems with two conserved quantities

Cédric Bernardin, Gabriel Stoltz

摘要:

介绍了一类能量体积守恒的一维确定性界面模型。数值模拟表明,这些动态是真正的超扩散。然后,我们通过添加一个保守的随机噪声,使其成为遍历修改的动态。系统的守恒律推导出修改后的动力学的水动力极限。数值证据表明,这些模型仍然是超扩散。这是严格证明谐波潜力。

英文摘要:

We introduce a class of one dimensional deterministic models of energy-volume conserving interfaces. Numerical simulations show that these dynamics are genuinely super-diffusive. We then modify the dynamics by adding a conservative stochastic noise so that it becomes ergodic. System of conservation laws are derived as hydrodynamic limits of the modified dynamics. Numerical evidence shows these models are still super-diffusive. This is proven rigorously for harmonic potentials.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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