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arXiv 2409.02401cond-mat.stat-mech
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受力和磁场作用下被动粒子的联合概率密度

Joint probability density of a passive article with force and magnetic field

Jae-Won Jung, Sung Kyu Seo, Kyungsik Kim

AI总结:

本文研究受指数相关高斯力及磁场作用的被动粒子运动,通过双重Fourier变换近似求解联合概率密度,并数值计算峰度、相关系数和矩。

摘要:

我们首先研究在简谐力、粘性力和微扰力作用下,受指数相关高斯力驱动的被动粒子运动的Navier-Stokes方程。其次,从具有磁场的不可压缩导电流体中的Fokker-Planck方程出发,通过在三个时域上使用双重Fourier变换,我们近似得到了联合概率密度的解。此外,从矩方程出发,对峰度、相关系数和矩进行了数值计算。

英文摘要:

We firstly study the Navier-Stokes equation for the motion of a passive particle with harmonic, viscous, perturbative forces, subject to an exponentially correlated Gaussian force. Secondly, from the Fokker-Planck equation in an incompressible conducting fluid of magnetic field, we approximately obtain the solution of the joint probability density by using double Fourier transforms in three-time domains. In addition, the kurtosis, the correlation coefficient, and the moment from moment equation are numerically calculated.

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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