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相关论文: On Hydrodynamic Equations at the Limit of Infinite…

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We study the convergence of the weak solution of the porous medium equation with a type of Robin boundary conditions, by tuning a parameter either to zero or to infinity. The convergence is in the strong sense, with respect to the…

偏微分方程分析 · 数学 2021-11-17 Renato De Paula , Patrícia Gonçalves , Adriana Neumann

The experimental observation of collective behaviour in proton-proton and proton-nucleus collisions poses a fundamental theoretical question regarding the proper characterization of the initial state underlying hydrodynamic evolution. While…

高能物理 - 唯象学 · 物理学 2026-05-28 Gabriel Rabelo-Soares , Gojko Vujanovic , Giorgio Torrieri

We introduce an extensible multi-fluid moment model in the context of collisionless magnetic reconnection. This model evolves full Maxwell equations, and simultaneously moments of the Vlasov-Maxwell equation for each species in the plasma.…

等离子体物理 · 物理学 2015-09-07 Liang Wang , Ammar H. Hakim , A. Bhattacharjee , K. Germaschewski

We introduce the idea of weakly coherent collisional models, where the elements of an environment interacting with a system of interest are prepared in states that are approximately thermal, but have an amount of coherence proportional to a…

We consider an open interacting particle system on a finite lattice. The particles perform asymmetric simple exclusion and are randomly created or destroyed at all sites, with rates that grow rapidly near the boundaries. We study the…

概率论 · 数学 2024-07-16 Lu Xu , Linjie Zhao

We derive the Euler (hyperbolic) hydrodynamic limit for the directed exclusion process (DEP), a one-dimensional conservative interacting particle system that preserves particle-hole symmetry while breaking left-right symmetry. The proof…

概率论 · 数学 2026-04-24 Ellen Saada , Federico Sau , Assaf Shapira

We give a new proof of the large deviation principle from the hydrodynamic limit for the Ginzberg-Landau model studied in Donsker and Varadhan (1989) using techniques from the theory of stochastic control and weak convergence methods. The…

概率论 · 数学 2018-03-28 Sayan Banerjee , Amarjit Budhiraja , Michael Perlmutter

We simulate the space-time dynamics of high-energy collisions based on a microscopic kinetic description in the conformal relaxation time approximation, in order to determine the range of applicability of an effective description in…

高能物理 - 唯象学 · 物理学 2023-04-26 Victor E. Ambrus , S. Schlichting , C. Werthmann

We review recent progress in understanding nearly integrable models within the framework of generalized hydrodynamics (GHD). Integrable systems have infinitely many conserved quantities and stable quasiparticle excitations: when…

统计力学 · 物理学 2021-11-17 Alvise Bastianello , Andrea De Luca , Romain Vasseur

Construction, in the framework of a Nonequilibrium Statistical Ensemble Formalism, of a Mesoscopic Hydro-Thermodynamics, that is, covering phenomena involving motion displaying variations short in space and fast in time -unrestricted values…

流体动力学 · 物理学 2012-10-30 C. A. B. Silva , J. G. Ramos , A. R. Vasconcellos , R. Luzzi

The purpose of this article is to provide a simple proof of the hydrodynamic and hydrostatic behavior of the SSEP in contact with slowed reservoirs which inject and remove particles in a finite size windows at the extremities of the bulk.…

数学物理 · 物理学 2020-10-23 Clément Erignoux , Patricia Gonçalves , Gabriel Nahum

This paper presents our study of the asymptotic behavior of a two-component system of Brownian motions undergoing certain singular interactions. In particular, the system is a combination of two different types of particles and the…

概率论 · 数学 2017-03-07 Insuk Seo

Maxwell-Stefan systems describing the dynamics of the molar concentrations of a gas mixture with an arbitrary number of components are analyzed in a bounded domain under isobaric, isothermal conditions. The systems consist of mass balance…

偏微分方程分析 · 数学 2012-11-13 Ansgar Jüngel , Ines Viktoria Stelzer

We have investigated thermodynamic and dynamic properties as well as the dielectric constant of water-metha\-nol model mixtures in the entire range of composition by using constant pressure molecular dynamics simulations at ambient…

软凝聚态物质 · 物理学 2015-12-25 E. Galicia-Andrés , H. Dominguez , L. Pusztai , O. Pizio

Using a generalization of the Madelung transformation, we derive the hydrodynamic representation of the Klein-Gordon-Einstein equations in the weak field limit. We consider a complex self-interacting scalar field with an arbitrary potential…

广义相对论与量子宇宙学 · 物理学 2015-12-01 Abril Suárez , Pierre-Henri Chavanis

An infinite particle system of independent jumping particles in infinite volume is considered. Their construction is recalled,further properties are derived, the relation with hierarchical equations, Poissonian analysis, and second…

Transport is one of the most important physical processes in all energy and length scales. Ideal gases and hydrodynamics are, respectively, two opposite limits of transport. Here, we present an unexpected mathematical connection between…

量子气体 · 物理学 2021-12-13 Zhe-Yu Shi , Chao Gao , Hui Zhai

We study the hydrodynamic limit of SSEP with slow boundaries on hypercubes in dimension at least two. The hydrodynamic limit equation is shown to be a heat equation with three different types of boundary conditions according to the slowness…

概率论 · 数学 2021-09-30 Tiecheng Xu

A three-dimensional mathematical model of a viscous incompressible fluid with two stiff particles is investigated in the near-contact regime. When one of the particles approaches the other motionless particle with prescribed translational…

偏微分方程分析 · 数学 2022-06-23 Zhiwen Zhao

A new framework is introduced for constructing interpretable and truly reliable reduced models for multiscale problems in situations without scale separation. Hydrodynamic approximation to the kinetic equation is used as an example to…

计算物理 · 物理学 2019-10-31 Jiequn Han , Chao Ma , Zheng Ma , Weinan E