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We use the variational approximation with double Gaussian type trial wave-functional approximation, in which we use the square root of the dispersion of the zero-mode wave-function as an order parameter, to study the out of equilibrium…

高能物理 - 理论 · 物理学 2007-05-23 Hyeong-Chan Kim , Jae Hyung Yee

We present an extension of the Allen-Cahn/Cahn-Hilliard system which incorporates a geometrically linear ansatz for the elastic energy of the precipitates. The model contains both the elastic Allen-Cahn system and the elastic Cahn-Hilliard…

偏微分方程分析 · 数学 2012-09-03 Thomas Blesgen , Anja Schlömerkemper

The Cahn-Hilliard equation has a wide range of applications in many areas of physics and chemistry. To describe the short-range interaction between the solution and the boundary, scientists have constructed dynamical boundary conditions by…

数值分析 · 数学 2025-11-05 Yunzhuo Guo , Cheng Wang , Zhengru Zhang

Degenerate Cahn-Hilliard phase-field models provide a robust approximation of surface-diffusion-driven interface motion without explicit front tracking. In computations, however, the geometric volume enclosed by the interface -- the region…

数值分析 · 数学 2026-02-03 Josef Musil

We study the one-dimensional Cahn-Hilliard equation with an additional driving term representing, say, the effect of gravity. We find that the driving field $E$ has an asymmetric effect on the solution for a single stationary domain wall…

凝聚态物理 · 物理学 2009-10-28 C. L. Emmott , A. J. Bray

We investigate the behavior, as a small parameter tends to zero, of a nonlocal Allen-Cahn equation. Given a rather general initial data, we perform a rigorous analysis of both the generation and the motion of interface, and obtain a new…

偏微分方程分析 · 数学 2009-06-09 Matthieu Alfaro

We investigate dynamics of large scale and slow deformations of layered structures. Starting from the respective model equations for a non-conserved system, a conserved system and a binary fluid, we derive the interface equations which are…

软凝聚态物质 · 物理学 2009-10-30 Takao Ohta , David Jasnow

A mathematical model describing the flow of two-phase fluids in a bounded container $\Omega$ is considered under the assumption that the phase transition process is influenced by inertial effects. The model couples a variant of the…

偏微分方程分析 · 数学 2019-06-14 Gianluca Favre , Giulio Schimperna

Invariant manifolds play an important role in organizing global dynamical behaviors. For example, it is found that in multi-well conservative systems where the potential energy wells are connected by index-1 saddles, the motion between…

动力系统 · 数学 2020-10-22 Jun Zhong , Shane D. Ross

We consider the Cahn-Hilliard equation in one space dimension with scaling a small parameter \epsilon and a non-convex potential W. In the limit \espilon \to 0, under the assumption that the initial data are energetically well-prepared, we…

偏微分方程分析 · 数学 2012-02-09 Giovanni Bellettini , Lorenzo Bertini , Mauro Mariani , Matteo Novaga

We study a diffuse interface model describing the motion of two viscous fluids driven by the surface tension in a Hele-Shaw cell. The full system consists of the Cahn-Hilliard equation coupled with the Darcy's law. We address the physically…

偏微分方程分析 · 数学 2019-03-12 Andrea Giorgini

We investigate the dynamics of a nonequilibrium interface between coexisting phases in a system described by a Cahn-Hilliard equation with an additional driving term. By means of a matched asymptotic expansion we derive equations for the…

patt-sol · 物理学 2009-10-30 Claude A. Laberge , Sven Sandow

In this paper, we study a diffuse interface model for two-phase immiscible flows coupled by Navier-Stokes equations and mass-conserving Allen-Cahn equations. The contact line (the intersection of the fluid-fluid interface with the solid…

偏微分方程分析 · 数学 2025-03-12 Yinghua Li , Yuanxiang Yan , Xijun Yin

We consider a system which consists of a Cahn-Hilliard equation coupled with a Cahn-Hilliard-Oono equation in a bounded domain of $\mathbb{R}^d$, $d = 2, 3$. This system accounts for macrophase and microphase separation in a polymer mixture…

偏微分方程分析 · 数学 2022-03-25 Andrea Di Primio , Maurizio Grasselli

The aim of this paper is to prove that, for specific initial data $(u_0,u_1)$ and with homogeneous Neumann boundary conditions, the solution of the IBVP for a hyperbolic variation of Allen-Cahn equation on the interval $[a,b]$ shares the…

偏微分方程分析 · 数学 2024-05-21 Raffaele Folino

We present two generalized hybrid kinetic-Hall magnetohydrodynamics (MHD) models describing the interaction of a two-fluid bulk plasma, which consists of thermal ions and electrons, with energetic, suprathermal ion populations described by…

等离子体物理 · 物理学 2021-11-11 D. A. Kaltsas , G. N. Throumoulopoulos , P. J. Morrison

For nonlinear hyperbolic systems of conservation laws in one space variable, we establish the existence of nonclassical entropy solutions exhibiting nonlinear interactions between shock waves with strong strength. The proposed theory is…

偏微分方程分析 · 数学 2021-05-17 Eva Kardhashi , Marc Laforest , Philippe G. LeFloch

Anisotropic hydrodynamics improves upon standard dissipative fluid dynamics by treating certain large dissipative corrections non-perturbatively. Relativistic heavy-ion collisions feature two such large dissipative effects: (i) Strongly…

核理论 · 物理学 2018-06-06 M. McNelis , D. Bazow , U. Heinz

We present and discuss the derivation of a nonlinear non-local integro-differential equation for the macroscopic time evolution of the conserved order parameter of a binary alloy undergoing phase segregation. Our model is a d-dimensional…

comp-gas · 物理学 2009-10-30 G. Giacomin , J. L. Lebowitz

We perform a detailed study of the relaxation towards equilibrium in the Hamiltonian Mean-Field (HMF) model, a prototype for long-range interactions in $N$-particle dynamics. In particular, we point out the role played by the infinity of…

统计力学 · 物理学 2009-11-10 Y. Y. Yamaguchi , J. Barr'e , F. Bouchet , T. Dauxois , S. Ruffo