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相关论文: Kinetic theory with angle-action variables

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A new master equation to mimic the dynamics of a collection of interacting random walkers in an open system is proposed and solved numerically.In this model, the random walkers interact through excluded volume interaction (single-file…

软凝聚态物质 · 物理学 2007-05-23 Prasanth P Jose , Biman Bagchi

In this paper we continue the study of the derivation of different types of kinetic equations which arise from scaling limits of interacting particle systems. We began this study in \cite{NVW}. More precisely, we consider the derivation of…

数学物理 · 物理学 2021-03-18 Alessia Nota , Juan J. L. Velázquez , Raphael Winter

We prove long-time contractivity estimates and exponential rates of convergence to equilibrium for solutions of hypoelliptic diffusion equations, which include the well-known Kolmogorov equation and similar kinetic Fokker-Planck equations…

偏微分方程分析 · 数学 2025-10-15 Nicolò Forcillo , Alessio Porretta

This paper a kinetic Boltzmann equation having a general type of collision kernel and modelling spin-dependent Fermi gases at low temperatures modelled by a kinetic equation of Boltzmann type. The distribution functions have values in the…

量子气体 · 物理学 2013-06-18 L. Arkeryd

We apply kinetic field theory to non-linear cosmic structure formation. Kinetic field theory decomposes the cosmic density field into particles and follows their trajectories through phase space. We assume that initial particle momenta are…

宇宙学与河外天体物理 · 物理学 2022-08-24 Sara Konrad , Matthias Bartelmann

We study a Hamiltonian system of type describing a charged particle resonant interaction with an electromagnetic wave. We consider an ensemble of particles that repeatedly pass through the resonance with the wave, and study evolution of the…

等离子体物理 · 物理学 2017-10-13 A. V. Artemyev , A. I. Neishtadt , A. A. Vasiliev , D. Mourenas

We present a model based on the lattice Boltzmann equation that is suitable for the simulation of dynamic wetting. The model is capable of exhibiting fundamental interfacial phenomena such as weak adsorption of fluid on the solid substrate…

Relating thermodynamic and kinetic properties is a conceptual challenge with many practical benefits. Here, based on first principles, we derive a rigorous inequality relating the entropy and the dynamic propagator of particle…

统计力学 · 物理学 2024-07-11 Benjamin Sorkin , Haim Diamant , Gil Ariel

A rigorous treatment of light-matter interactions typically requires an interacting quantum field theory. However, most applications of interest are handled using classical or semiclassical models, which are valid only when quantum-field…

量子气体 · 物理学 2024-12-20 J. L. Figueiredo , J. T. Mendonça , H. Terças

In this paper we study the kinetic theory of many-particle astrophysical systems and we present a consistent version of the collisionless Boltzmann equation in the 1PN approximation. We argue that the equation presented by Rezania and…

广义相对论与量子宇宙学 · 物理学 2011-07-04 C. A. Agón , J. F. Pedraza , J. Ramos-Caro

In the article, correct method for the kinetic Boltzmann equation asymptotic solution is formulated, the Hilbert method and the Enskog error are considered. The equations system of multi-component nonequilibrium gas-dynamics is derived,…

流体动力学 · 物理学 2009-05-12 Sergey A. Serov , Svetlana S. Serova

It is argued that the world is a dissipative dynamic system, a phase flow of which is formed by conformally-symplectic mapping. The key assumption is that the concept of energy in microcosm makes sense only for the steady motions…

动力系统 · 数学 2009-04-08 A. P. Alexandrov

From the Horowitz-Esposito stochastic thermodynamical description of information flows in dynamical systems [J. M. Horowitz and M. Esposito, Phys. Rev. X4, 031015 (2014)], it is known that while the second law of thermodynamics is satisfied…

统计力学 · 物理学 2016-03-23 Carlo Cafaro , Sean Alan Ali , Adom Giffin

We derive the Hydrodynamics for a system of N active, spherical, underdamped particles, interacting through conservative forces. At the microscopic level, we represent the evolution of the particles in terms of the Kramers equation for the…

统计力学 · 物理学 2022-03-15 Umberto Marini Bettolo Marconi , Andrea Puglisi , Lorenzo Caprini

In kinetic theory, a system is usually described by its one-particle distribution function $f(\mathbf{r},\mathbf{v},t)$, such that $f(\mathbf{r},\mathbf{v},t)d\mathbf{r} d\mathbf{v}$ is the fraction of particles with positions and…

统计力学 · 物理学 2017-05-17 C. A. Plata , A. Prados

We consider systems of agents interacting through topological interactions. These have been shown to play an important part in animal andhuman behavior. Precisely, the system consists of a finite number of particles characterized by their…

数学物理 · 物理学 2017-11-22 Adrien Blanchet , Pierre Degond

We study the asymptotic behavior of Fokker-Planck equations with spatially inhomogeneous nonlinear diffusion, based on the energy dissipation law. First, we consider the Fokker-Planck equation with porous-medium-type nonlinear diffusion…

偏微分方程分析 · 数学 2025-12-16 Kouta Araki , Masashi Mizuno

We critically compare thermodynamic and kinetic approaches, that have been recently used to study relations between the spin polarization and fluid vorticity in systems consisting of spin-one-half particles. The thermodynamic approach…

高能物理 - 唯象学 · 物理学 2018-10-31 Wojciech Florkowski , Avdhesh Kumar , Radoslaw Ryblewski

We consider the long-term evolution of an inhomogeneous long-range interacting $N$-body system. Placing ourselves in the dynamically hot limit, i.e. neglecting collective effects, we derive a large deviation principle for the system's…

统计力学 · 物理学 2023-08-17 Ouassim Feliachi , Jean-Baptiste Fouvry

Calculating the frequency dependent dielectric function for strongly coupled plasmas, the relations within kinetic theory and linear response theory are derived and discussed in comparison. In this context, we proof the Kohler variational…

等离子体物理 · 物理学 2012-02-27 Heidi Reinholz , Gerd Röpke
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