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The influence of a temporal forcing on the pattern formation in Langmuir-Blodgett transfer is studied employing a generalized Cahn-Hilliard model. The occurring frequency locking effects allow for controlling the pattern formation process.…

斑图形成与孤子 · 物理学 2019-06-19 Phong-Minh Timmy Ly , Uwe Thiele , Lifeng Chi , Svetlana V. Gurevich

This article examines the dynamic phase transitions and pattern formations attributed to binary systems modeled by the Cahn-Hilliard equation. In particular, we consider a two-dimensional lattice structure and determine how different…

偏微分方程分析 · 数学 2025-11-25 Jared Grossman , Evan Halloran , Shouhong Wang

Solid substrates can be endued with self-organized regular stripe patterns of nanoscopic lengthscale by Langmuir-Blodgett transfer of organic monolayers. Here we consider the effect of periodically prepatterned substrates on this process of…

斑图形成与孤子 · 物理学 2015-05-20 Michael H. Köpf , Svetlana V. Gurevich , Rudolf Friedrich

We briefly review selected mathematical models that describe the dynamics of pattern formation phenomena in dip-coating and Langmuir-Blodgett transfer experiments, where solutions or suspensions are transferred onto a substrate producing…

斑图形成与孤子 · 物理学 2015-07-28 Markus Wilczek , Walter B. H. Tewes , Svetlana V. Gurevich , Michael H. Köpf , Lifeng Chi , Uwe Thiele

We explore the bifurcation structure of a modified Cahn-Hilliard equation that describes a system that may undergo a first order phase transition and is kept permanently out of equilibrium by a lateral driving. This forms a simple model,…

斑图形成与孤子 · 物理学 2018-07-24 Michael H. Köpf , Uwe Thiele

A number of mechanisms that lead to the confinement of patterns to a small part of a translationally symmetric pattern-forming system are reviewed: nonadiabatic locking of fronts, global coupling and conservation laws, dispersion, and…

patt-sol · 物理学 2007-05-23 Hermann Riecke

The main objective of this article is to study the order-disorder phase transition and pattern formation for systems with long-range repulsive interactions. The main focus is on the Cahn-Hilliard model with a nonlocal term in the…

统计力学 · 物理学 2011-06-21 Honghu Liu , Taylan Sengul , Shouhong Wang , Pingwen Zhang

Dynamical coherent structure (pattern) formation in the Klein-Gordon lattice excited by periodic external field near the optical resonance is studied. It is shown that besides spatial patterns discovered recently (V.M.Burlakov,…

patt-sol · 物理学 2009-10-31 Victor M. Burlakov

Phase separation in binary mixtures in the presence of Janus particles has been studied in terms of a Cahn-Hilliard model coupled to the Langevin equations describing the particle dynamics. We demonstrate that the phase separation process…

软凝聚态物质 · 物理学 2015-06-17 Alexei Krekhov , Vanessa Weith , Walter Zimmermann

The theory of stationary spatially localized patterns in dissipative systems driven by time-independent forcing is well developed. With time-periodic forcing related but time-dependent structures may result. These may consist of breathing…

斑图形成与孤子 · 物理学 2016-04-29 Punit Gandhi , Edgar Knobloch , Cédric Beaume

We study time-periodic forcing of spatially-extended patterns near a Turing-Hopf bifurcation point. A symmetry-based normal form analysis yields several predictions, including that (i) weak forcing near the intrinsic Hopf frequency enhances…

斑图形成与孤子 · 物理学 2015-05-13 C. M. Topaz , Anne J. Catlla

Pattern forming with externally imposed symmetry is ubiquitous in nature but lightly studied.We present experimental studies of pattern formation and selection by spatial periodic forcing in rapidly rotating convection. We observe symmetric…

流体动力学 · 物理学 2022-01-25 Shan-Shan Ding , Hong-Lin Zhang , Dong-Tian Chen , Hao-Han Sun , Jin-Qiang Zhong

We study the Swift-Hohenberg equation - a paradigm model for pattern formation - with "large" spatially periodic coefficients and find a Turing bifurcation that generates patterns whose leading order form is a Bloch wave modulated by…

斑图形成与孤子 · 物理学 2025-06-30 Jolien Kamphuis , Martina Chirilus-Bruckner

We study the effects of adding a local perturbation in a pattern forming system, taking as an example the Ginzburg-Landau equation with a small localized inhomogeneity in two dimensions. Measuring the response through the linearization at a…

偏微分方程分析 · 数学 2013-08-14 Gabriela Jaramillo , Arnd Scheel

Many systems exhibit a phase where the order parameter is spatially modulated. These patterns can be the result of a frustration caused by the competition between interaction forces with opposite effects. In all models with local…

统计力学 · 物理学 2014-01-21 Simon Villain-Guillot

Localized patterns are coherent structures embedded in a quiescent state and occur in both discrete and continuous media across a wide range of applications. While it is well-understood how domain covering patterns (for example stripes and…

斑图形成与孤子 · 物理学 2025-03-19 Jason J. Bramburger , Dan J. Hill , David J. B. Lloyd

In pattern-forming systems, localized patterns are states of intermediate complexity between fully extended ordered patterns and completely irregular patterns. They are formed by stationary fronts enclosing an ordered pattern inside an…

斑图形成与孤子 · 物理学 2013-08-06 G. Kozyreff , S. J. Chapman

We study spatial pattern formation and energy localization in the dynamics of an anharmonic chain with quadratic and quartic intersite potential subject to an optical, sinusoidally oscillating field and a weak damping. The zone-boundary…

斑图形成与孤子 · 物理学 2009-11-07 Ramaz Khomeriki , Stefano Lepri , Stefano Ruffo

We consider a physical model where the total energy is governed by surface tension and attractive screened Coulomb potential on the 3-dimensional space. We obtain different periodic equilibrium patterns i.e. stationary sets for this energy,…

偏微分方程分析 · 数学 2017-11-30 Mouhamed Moustapha Fall

We study analytically kinetics of an elementary bimolecular reaction scheme of the Langmuir-Hinshelwood type taking place on a d-dimensional catalytic substrate. We propose a general approach which takes into account explicitly the…

统计力学 · 物理学 2009-10-31 P. Argyrakis , S. F. Burlatsky , E. Clement , G. Oshanin
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