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相关论文: The Darwin Approximation of the Relativistic Vlaso…

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The relativistic fluid is a highly successful model used to describe the dynamics of many-particle, relativistic systems. It takes as input basic physics from microscopic scales and yields as output predictions of bulk, macroscopic motion.…

广义相对论与量子宇宙学 · 物理学 2015-06-25 N. Andersson , G. L. Comer

In this paper we consider an interacting particle system modeled as a system of $N$ stochastic differential equations driven by Brownian motions with a drift term including a confining potential acting on each particle, and an interaction…

概率论 · 数学 2007-05-23 Matteo Ortisi

In the present paper, we study the diffusion limit of the classical solution to the unipolar Vlasov-Poisson-Boltzmann (VPB) system with initial data near a global Maxwellian. We prove the convergence and establish the convergence rate of…

偏微分方程分析 · 数学 2021-06-09 Hai-Liang Li , Tong Yang , Mingying Zhong

Since the work [13] by Guo [Invent. Math. 153 (2003), no. 3, 593--630], how to establish the global existence of perturbative classical solutions around a global Maxwellian to the Vlasov-Maxwell-Boltzmann system with the whole range of soft…

偏微分方程分析 · 数学 2014-11-20 Renjun Duan , Yuanjie Lei , Tong Yang , Huijiang Zhao

The global-in-time existence of classical solutions to the relativistic Vlasov-Maxwell (RVM) system in three space dimensions remains elusive after nearly four decades of mathematical research. In this note, a simplified ``toy model'' is…

偏微分方程分析 · 数学 2021-12-13 Jonathan Ben-Artzi , Stephen Pankavich , Junyong Zhang

We study a class of interacting particle systems on $\mathbb{R}$ with two types. Particles evolve by independent jumps sampled from a fixed distribution, with type-dependent jump rates $v_+$, $v_-$ and stochastic type switching driven by…

概率论 · 数学 2026-05-14 Sayan Banerjee , Andrew Nguyen

Doubly Special Relativity (DSR) is a class of theories of relativistic motion with two observer-independent scales. We investigate the velocity of particles in DSR, defining velocity as the Poisson bracket of position with the appropriate…

高能物理 - 理论 · 物理学 2009-11-10 M. Daszkiewicz , K. Imilkowska , J. Kowalski-Glikman

Although the Vlasov equation is used as a good approximation for a sufficiently large $N$, Braun and Hepp have showed that the time evolution of the one particle distribution function of a $N$ particle classical Hamiltonian system with long…

统计力学 · 物理学 2015-06-15 T. M. Rocha Filho , A. E. Santana , J. R. S. Moura , M. A. Amato , A. Figueiredo

In this paper, we present a numerical approach to solve the McKean-Vlasov equations, which are distribution-dependent stochastic differential equations, under some non-globally Lipschitz conditions for both the drift and diffusion…

数值分析 · 数学 2023-05-30 Qian Guo , Jie He , Lei Li

The approach to the theory of a relativistic random process is considered by the path integral method as Brownian motion taking into account the boundedness of speed. An attempt was made to build a relativistic analogue of the Wiener…

广义相对论与量子宇宙学 · 物理学 2024-05-30 E. A. Kurianovich , A. I. Mikhailov , I. V. Volovich

We investigate a one-dimensional system of $N$ particles, initially distributed with random positions and velocities, interacting through binary collisions. The collision rule is such that there is a time after which the $N$ particles do…

数学物理 · 物理学 2018-03-14 Joceline Lega , Sunder Sethuraman , Alexander L Young

This article introduces a novel approach to the mean-field limit of stochastic systems of interacting particles, leading to the first ever derivation of the mean-field limit to the Vlasov-Poisson-Fokker-Planck system for plasmas in…

偏微分方程分析 · 数学 2025-04-02 Didier Bresch , Pierre-Emmanuel Jabin , Juan Soler

According to Einstein, the trajectory of a particle that is predicted by special relativistic mechanics is well approximated by the trajectory predicted by Newtonian mechanics if the particle speed is low, i.e., much less than the speed of…

经典物理 · 物理学 2015-06-26 Boon Leong Lan

We consider a general system of n noninteracting identical particles which evolve under a given dynamical law and whose initial microstates are a priori independent. The time evolution of the n-particle average of a bounded function on the…

chao-dyn · 物理学 2021-04-28 Brian R. La Cour , William C. Schieve

We use differential equations based approaches to provide some {\it \textbf{physics}} insights into analyzing the dynamics of popular optimization algorithms in machine learning. In particular, we study gradient descent, proximal gradient…

机器学习 · 计算机科学 2018-10-26 Lin F. Yang , R. Arora , V. Braverman , Tuo Zhao

The physical phase space of the relativistic top, as defined by Hanson and Regge, is expressed in terms of canonical coordinates of the Poincar\'e group manifold. The system is described in the Hamiltonian formalism by the mass shell…

高能物理 - 理论 · 物理学 2014-11-18 N. K. Nielsen , U. J. Quaade

We consider the long-time behavior of a fast, charged particle interacting with an initially spatially homogeneous background plasma. The background is modeled by the screened Vlasov-Poisson equations, whereas the interaction potential of…

偏微分方程分析 · 数学 2024-08-28 Richard M. Höfer , Raphael Winter

We consider an Einstein-Maxwell action modified by the addition of three terms coupling the electromagnetic strength to the curvature tensor. The corresponding generalized Maxwell equations imply a variation of the speed of light in a…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Pierre Teyssandier

A new scheme for numerical integration of the 1D2V relativistic Vlasov-Maxwell system is proposed. Assuming that all particles in a cell of the phase space move with the same velocity as that of the particle located at the center of the…

等离子体物理 · 物理学 2010-02-18 Akihiro Suzuki , Toshikazu Shigeyama

We study approximations of evolving probability measures by an interacting particle system. The particle system dynamics is a combination of independent Markov chain moves and importance sampling/resampling steps. Under global regularity…

概率论 · 数学 2011-12-12 Andreas Eberle , Carlo Marinelli