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arXiv 1012.4631cond-mat.stat-mech
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用Langevin和Fokker-Planck方法研究偏态超统计分布

Skewed superstatistical distributions from a Langevin and Fokker-Planck approach

Erik Van der Straeten, Christian Beck

摘要:

超统计量的概念是一个有用的统计方法来描述非均匀的复杂系统,系统参数$β$波动的大时空尺度上。在本文中,我们分析了实测的风速波动的时间序列,并提取超统计分布函数$f(β)$直接从数据。我们构造了合适的Langevin和Fokker-Planck模型与位置相关的$β$ -场,并表明,他们减少到标准类型的超统计量的过阻尼极限。

英文摘要:

The superstatistics concept is a useful statistical method to describe inhomogeneous complex systems for which a system parameter $β$ fluctuates on a large spatio-temporal scale. In this paper we analyze a measured time series of wind speed fluctuations and extract the superstatistical distribution function $f(β)$ directly from the data. We construct suitable Langevin and Fokker-Planck models with a position dependent $β$-field and show that they reduce to standard type of superstatistics in the overdamped limit.

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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