搜索结果: 16-30 共查到“Planck”相关记录52条 . 查询时间(0.293 秒)
Maximum Path Information and Fokker-Planck Equation
Maximum Path Information Fokker-Planck Equation
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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...
On time-changed Gaussian processes and their associated Fokker-Planck-Kolmogorov equations
Gaussian processes Fokker-Planck-Kolmogorov equations
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2010/11/18
This paper establishes Fokker-Planck-Kolmogorov type equations for time-changed Gaussian processes. Examples include those equations for a time-changed fractional Brownian motion with time-dependent ...
The Wigner-Fokker-Planck equation: Stationary states and large-time behavior
Wigner-Fokker-Planck equation Stationary states large-time behavior
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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 ...
From chemical Langevin equations to Fokker-Planck equation: application of Hodge decomposition and Klein-Kramers equation
Fokker-Planck equation application of Hodge decomposition Klein-Kramers equation
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2010/12/8
The stochastic systems without detailed balance are common in various chemical reaction systems, such as metabolic network systems. In studies of these systems, the concept of potential landscape is u...
Fokker-Planck Asymptotics for Traffic Flow Models
Traffic Flow Modeling Fokker–Planck Equations
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2010/12/6
Starting from microscopic interaction rules we derive kinetic models of Fokker–Planck type for vehicular traffic flow. The derivation is based on taking a suitable asymptotic limit of the correspondin...
Exponential convergence to equilibrium for kinetic Fokker-Planck equations on Riemannian manifolds
kinetic Fokker-Planck equations Riemannian manifolds
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2010/12/13
A class of linear kinetic Fokker-Planck equations with a non-trivial dif-fusion matrix and with periodic boundary conditions in the spatial vari-able is considered. After formulating the problem in a ...
We give six arguments that the Planck scale should be viewed as a fundamental minimum or boundary for the classical concept of spacetime, beyond which quantum effects cannot be neglected and the basic...
Quantum Fluctuations Contribution to the Random Walk of a Single Molecule and New Estimate of the Planck Constant
Quantum Fluctuations Random Walk Planck Constant
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2010/3/10
It is shown, by considering the case of the harmonic oscillator, that quantum fluctuations may be the most significant contribution to the random walk of a single molecule. From this point, the contro...
Green function for a non-Markovian Fokker-Planck equation: Comb-model and anomalous diffusion
Anomalous diffusion Comb-model Fokker-Planck
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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
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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 ...
The Nobel Prize in Physics 1918, Max Karl Ernst Ludwig Planck, in recognition of the services he rendered to the advancement of Physics by his discovery of energy quanta.
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
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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.
高能不等核碰撞和弛豫时间的Fokker-Planck方程描述
Fokker-Planck方程 弛豫时间 高能不等核碰撞
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2009/7/2
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
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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.