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This is the first of two articles on the study of a particle system model that exhibits a Turing instability type effect. The model is based on two discrete lines (or toruses) with Ising spins, that evolve according to a continuous time…

概率论 · 数学 2017-07-19 Monia Capanna , Nahuel Soprano-Loto

A variant of continuous nonequilibrium thermodynamic theory based on the postulate of the scale invariance of the local relation between generalized fluxes and forces has been proposed. This single postulate replaces the assumptions on…

统计力学 · 物理学 2015-06-05 Leonid M. Martyushev , V. D. Seleznev

A theory of thermohydrodynamics in two-dimensional electron systems in quantizing magnetic fields is developed including a nonlinear transport regime. Spatio-temporal variations of the electron temperature and the chemical potential in the…

介观与纳米尺度物理 · 物理学 2009-11-10 Hiroshi Akera , Hidekatsu Suzuura

A full viscous quantum hydrodynamic system for particle density, current density, energy density and electrostatic potential coupled with a Poisson equation in one dimensional bounded intervals is studied. First, the existence and…

偏微分方程分析 · 数学 2023-07-03 Xiaoying Han , Yuming Qin , Wenlong Sun

It is shown that the quasi-one-dimensional Bose-Einstein condensate is experimentally accessible and rich in intriguing phenomena. We demonstrate numerically and analytically the existence, stability, and perturbation-induced dynamics of…

凝聚态物理 · 物理学 2009-10-31 Lincoln D. Carr , Mary Ann Leung , William P. Reinhardt

For Stokes waves in finite depth within the neighbourhood of the Benjamin-Feir stability transition, there are two families of periodic waves, one modulationally unstable and the other stable. In this paper we show that these two families…

流体动力学 · 物理学 2024-10-24 Daniel J. Ratliff , Olga Trichtchenko , Thomas J. Bridges

Using a standing light wave trap, a stable quasi-one-dimensional attractive dilute-gas Bose-Einstein condensate can be realized. In a mean-field approximation, this phenomenon is modeled by the cubic nonlinear Schr\"odinger equation with…

凝聚态物理 · 物理学 2009-10-31 J. C. Bronski , L. D. Carr , R. Carretero-Gonzalez , B. Deconinck , J. N. Kutz , K. Promislow

Using the contemporary thermodynamic equations of elastic solids leads to contradictions with the fundamental statements of thermodynamics. Two examples are presented to expose the inconsistencies. In example one the internal energy between…

综合物理 · 物理学 2007-05-23 Jozsef Garai , Alexandre Laugier

This work is devoted to the definition and the analysis of the effective viscosity associated with a random suspension of small rigid particles in a steady Stokes fluid. While previous works on the topic have been conveniently assuming that…

偏微分方程分析 · 数学 2021-10-01 Mitia Duerinckx

The spontaneous (so-called Quincke) rotation of an uncharged, solid, dielectric, spherical particle under a steady electric field is analyzed, accounting for the inertia of the particle and the transient fluid inertia, or ``hydrodynamic…

流体动力学 · 物理学 2025-09-15 Jason K. Kabarowski , Aditya S. Khair , Rahil N. Valani

We generalize the periodic Evans function approach recently used to study the spectral stability of Stokes wave and gravity-capillary (including Wilton ripples) in water of finite depth to study spectral stability of Stokes waves in water…

偏微分方程分析 · 数学 2021-09-28 Zhao Yang

The statistical nature of discrete fluid molecules with random thermal motion so far has not been considered in mainstream fluid mechanics based on Navier-Stokes equations, wherein fluids have been treated as a continuum breaking into many…

流体动力学 · 物理学 2023-07-17 Haibing Peng

We analyze the mixed frame equations of radiation hydrodynamics under the approximations of flux-limited diffusion and a thermal radiation field, and derive the minimal set of evolution equations that includes all terms that are of leading…

天体物理学 · 物理学 2009-11-11 Mark R. Krumholz , Richard I. Klein , Christopher F. McKee , John Bolstad

We demonstrate, by providing two specific examples, that the local differential thermodynamic relations used as educated guesses in relativistic hydrodynamics with spin, do not hold even at global thermodynamic equilibrium. We show, by…

核理论 · 物理学 2026-05-26 Francesco Becattini , Rajeev Singh

The three-dimensional study of the ring vortex solitons is conducted for both attractive and repulsive BECs subject to harmonic potential confinement. A family of stationary ring vortex solitons, which is defined by the radial excitation…

量子气体 · 物理学 2012-08-06 Li Ji , Deng-Shan Wang , Zhi-Yong Wu , Yan-Mei Yu , Wu-Ming Liu

By refining the method proposed in arXiv:2010.07660, entropy current and entropy density for a relativistic hydrostatic equilibrium system with spherical symmetry are constructed as a non-Noether conserved charge in the Einstein gravity…

广义相对论与量子宇宙学 · 物理学 2024-07-12 Shuichi Yokoyama

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

Wall-bounded sedimentation of spherical particles at low particle Reynolds numbers $Re_\text{P}\lessapprox 0.1$ under the influence of elastic deformation was investigated experimentally. The complete kinematics of both elastic and rigid…

流体动力学 · 物理学 2024-09-12 Isabell Noichl , Clarissa Schönecker

Ultracold Bose atoms is the physical system, where the quantum and nonlinear phenomena play crucial role. Ultracold bosons are considered at the small finite temperatures. Bosons are considered as two different fluids: Bose-Einstein…

量子气体 · 物理学 2021-01-29 Pavel A. Andreev

We develop a novel model of the magnetized spin-1 Bose-Einstein condensate (BEC) of neutral atoms, using the method of many-particle quantum hydrodynamic (QHD) and propose an original derivation of the system of continual equations. We…

量子气体 · 物理学 2021-01-12 Mariya Iv. Trukhanova , Yuri N. Obukhov
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