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We investigate analytically and computationally the dynamics of 2D needle crystal growth from the melt in a narrow channel. Our analytical theory predicts that, in the low supersaturation limit, the growth velocity $V$ decreases in time $t$…

材料科学 · 物理学 2023-05-24 Younggil Song , Damien Tourret , Alain Karma

We propose general conditions for the emergence of Turing patterns in a domain that changes size through homogeneous growth/shrinkage based on the qualitative changes of a potential function. For this part of the work, we consider the most…

斑图形成与孤子 · 物理学 2023-10-03 Aldo Ledesma-Durán

Mounding instability in a conserved growth from vapor is analysed within the framework of adatom kinetics on the growing surface. The analysis shows that depending on the local structure on the surface, kinetics of adatoms may vary, leading…

软凝聚态物质 · 物理学 2009-11-07 S. V. Ghaisas

The morphology of crystalline thin films evolving on flat rigid substrates by condensation of extra film atoms or by evaporation of their own atoms in the surrounding vapor is studied in the framework of the theory of Stress Driven…

偏微分方程分析 · 数学 2024-11-05 Paolo Piovano , Francesco Sapio

In this work we study the unitary time-evolutions of quantum systems defined on infinite-dimensional separable time-dependent Hilbert spaces. Two possible cases are considered: a quantum system defined on a stochastic interval and another…

量子物理 · 物理学 2019-05-22 Luca Curcuraci , Stefano Bacchi , Angelo Bassi

We describe a comprehensive model for the formation and morphological development of atmospheric ice crystals growing from water vapor, also known as snow crystals. Our model derives in part from empirical measurements of the intrinsic ice…

材料科学 · 物理学 2012-11-26 Kenneth G. Libbrecht

We consider an unbounded lattice and at each point of this lattice an anharmonic oscillator, that interacts with its first neighborhoods via a pair potential $V$ and is subjected to a restoring force of potential $U$. We assume that $U$ and…

数学物理 · 物理学 2018-02-12 Paolo Buttà , Carlo Marchioro

We study poly-crystalline spherical drops of an aqueous suspension of highly charged colloidal spheres exposed to a colloid-free aqueous environment. Crystal contours were obtained from standard optical imaging. The crystal spheres first…

We investigate the time evolution of an initial step profile separating a bare substrate region from the rest of the compressively strained adsorbate layer near a commensurate to incommensurate transition. The rate of profile evolution as a…

材料科学 · 物理学 2013-03-21 E. Granato , S. C. Ying

We investigate the growth of a crystal that is built by depositing cubes onto the inside of a corner. The interface of this crystal evolves into a limiting shape in the long-time limit. Building on known results for the corresponding…

统计力学 · 物理学 2012-03-06 Jason Olejarz , P. L. Krapivsky , S. Redner , K. Mallick

A new model of crystal growth is presented that describes the phenomena on atomic length and diffusive time scales. The former incorporates elastic and plastic deformation in a natural manner, and the latter enables access to times scales…

材料科学 · 物理学 2009-11-07 K. R. Elder , Mark Katakowski , Mikko Haataja , Martin Grant

We examine the time variation of a previously-uninvestigated fundamental dimensionless constant. Constraints are placed on this time variation using historical measurements. A model is presented for the time variation, and it is shown to…

宇宙学与河外天体物理 · 物理学 2009-04-01 Robert J. Scherrer

We studied phase separation in a particle interacting system under a large drive along x. We here identify the basic growth mechanisms, and demonstrate time self-similarity, finite-size scaling, as well as other interesting features of both…

统计力学 · 物理学 2009-11-07 Pablo I. Hurtado , J. Marro , E. V. Albano

Interfacial instability would be aroused on a spherical liquid droplet when it is subject to external vertical vibration. In this paper, a linear analysis was conducted on this instability problem. The polar-angle dependent acceleration in…

流体动力学 · 物理学 2022-03-23 Yikai Li , Kun Wu , Dehua Liu , Ru Xi

Grain growth experiments on thin metallic films have shown the geometric and topological characteristics of the grain structure to be universal and independent of many experimental conditions. The universal size distribution, however, is…

材料科学 · 物理学 2017-11-21 Rainer Backofen , Katayun Barmak , Ken Elder , Axel Voigt

Time crystals are nonequilibrium phases of matter characterized by the emergence of temporal ordering, in which an interacting many-body system develops robust structure in its time evolution that is not trivially dictated by the external…

量子物理 · 物理学 2026-05-27 Gonzalo Camacho , Benedikt Fauseweh

We investigate the nonlinear evolution of the Bales-Zangwill instability, responsible for the meandering of atomic steps on a growing vicinal surface. We develop an asymptotic method to derive, in the continuous limit, an evolution equation…

材料科学 · 物理学 2014-06-17 Alberto Verga

The dynamic response of dendritic solidification to spatially homogeneous time-periodic forcing has been studied. Phase-field calculations performed in two dimensions (2D) and experiments on thin (quasi 2D) liquid crystal layers show that…

软凝聚态物质 · 物理学 2015-06-24 T. Borzsonyi , T. Toth-Katona , A. Buka , L. Granasy

Discrete time crystal is a class of nonequilibrium quantum systems exhibiting subharmonic responses to external periodic driving. Here we propose a class of discrete time crystals enforced by nonsymmorphic dynamical symmetry. We start with…

量子物理 · 物理学 2023-10-10 Zi-Ang Hu , Bo Fu , Xiao Li , Shun-Qing Shen

We consider the evolution by crystalline curvature of a planar set in a stratified medium, modeled by a periodic forcing term. We characterize the limit evolution law as the period of the oscillations tends to zero. Even if the model is…

偏微分方程分析 · 数学 2017-07-13 Andrea Braides , Annalisa Malusa , Matteo Novaga