搜索结果: 1-14 共查到“物理学 Fokker-Planck”相关记录14条 . 查询时间(0.104 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：The linearized Vlasov and Vlasov-Fokker-Planck equations in a uniform magnetic field
均匀磁场 线性化 Vlasov Vlasov-Foker-Planck方程
2023/5/17
We study the linearized Vlasov equations and the linearized Vlasov-Fokker-Planck equations in the weakly collisional limit in a uniform magnetic field. In both cases, we consider periodic confinement ...
Newtonian limit and trend to equilibrium for the relativistic Fokker-Planck equation
Relativistic Fokker-Planck equation Newtonian limit Trend to equilibrium
2011/9/21
Abstract: The relativistic Fokker-Planck equation, in which the speed of light $c$ appears as a parameter, is considered. It is shown that in the limit $c\to\infty$ its solutions converge in $L^1$ to ...
Similarity solutions of Fokker-Planck equation with time-dependent coefficients
Fokker-Planck equation time-dependent drift and diffusion similarity method
2011/7/26
Abstract: In this work, we consider the solvability of the Fokker-Planck equation with both time-dependent drift and diffusion coefficients by means of the similarity method. By the introduction of th...
Maximum Path Information and Fokker-Planck Equation
Maximum Path Information Fokker-Planck Equation
2010/11/23
We present in this paper a rigorous method to derive the nonlinear Fokker-Planck (FP) equation of anomalous diffusion directly from a generalization of the principle of least action of Maupertuis prop...
The Wigner-Fokker-Planck equation: Stationary states and large-time behavior
Wigner-Fokker-Planck equation Stationary states large-time behavior
2010/11/11
We consider the linear Wigner-Fokker-Planck equation subject to confining potentials which are smooth perturbations of the harmonic oscillator potential. For a certain class of perturbations we prove ...
Green function for a non-Markovian Fokker-Planck equation: Comb-model and anomalous diffusion
Anomalous diffusion Comb-model Fokker-Planck
2010/7/5
We investigate solutions, by using the Green function approach, for a system governed by a non-Markovian Fokker-Planck equation and subjected to a Comb structure. This structure consists of the axis o...
Lie symmetries and related group-invariant solutions of a nonlinear Fokker-Planck equation based on the Sharma-Taneja-Mittal entropy
Nonlinear Fokker-Planck equation Sharma-Taneja-Mittal entropy Lie symmetries Group invariant solutions
2010/7/5
In the framework of the statistical mechanics based on the Sharma-Taneja-Mittal entropy we derive a family of nonlinear Fokker-Planck equations characterized by the associated non-increasing Lyapunov ...
Fokker-Planck方程局域谐振方法近似解的研究
近似解 局域谐振方法 Fokker-Planck方程
2009/7/30
本文通过与精确数值解的比较,在相当大的核温度和粘滞性范围内验证了具有非谐位的Fokker-Planck方程的局域谐振近似的可靠性.
本文提出用Fokker-Planck方程描述高能重离子碰撞时空演化,并用它分析在200AGeV的16O束流和32S束流下,末态粒子的快度分布,并确定了不同系统的弛豫时间,得到了可以和通用经验数值相比较的结果.
格点规范理论中Fokker-Planck方程的平均场解
格点规范 Fokker-Planck方程 平均场解
2009/5/21
将格点规范理论中的演化分布函数逐步地分解为单链变量分布函数的乘积,我们得到了Fokker-Planck方程的平均场近似解.
模耦合理论比较成功地解释了微波不稳定性的发生,其理论基础是Vlasov方程.Fokker-Planck方程包含了束团的辐射阻尼效应和量子激发效应,是比较完备地描述粒子运动状态的束团分布方程.比较了Fokker-Planck方程和Vlasov方程在来源、意义和解法方面的关联和不同,同时介绍了一种多项式展开束团耦合模式来求解Fokker-Planck方程的方法,并在静态分布中包含了势阱畸变的效应.
用变分法解Fokker—Planck方程计算核裂变几率
变分法 Fokker-Planck方程 裂变几率
2008/1/27
发展了一种用变分法解Fokker-Planck方程的方法,计算了一维核裂变几率,研究了F-P方程与Smoluchowski方程的关系,为推导多维的质量系数和粘滞系数随形变参量变化并具有交叉项的Smoluchowski方程和解位能形式比较复杂的多维的F-P方程打下了基础.
On New Invariant Solutions of Generalized Fokker-Planck
Equation
Fokker-Planck equation potential symmetry invariant solutions
symbolic computation
2007/8/15
2004Vol.41No.5pp.665-668DOI:
On New Invariant Solutions of Generalized Fokker-Planck
Equation
YAO Ruo-Xia1,2,3 and LI Zhi-Bin1
1 Department of Computer Science, East Ch...
Entropy Production in Nonequilibrium Systems Described by a Fokker-Planck Equation
Entropy production Irreversible systems Fokker-Planck equation
2010/10/13
We study the entropy production in nonequilibrium systems described by a Fokker-Planck equation. We have devised an expression for the entropy flux in the stationary state. We have found that the entr...