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相关论文: Dynamical surface structures in multi-particle-cor…

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We consider two sequential models of deposition and aggregation for particles. The first model (No Diffusion) simulates surface diffusion through a deterministic capture area, while the second (Sequential Diffusion) allows the atoms to…

材料科学 · 物理学 2007-05-23 Daniele Vilone , Claudio Castellano , Paolo Politi

There are three fundamental physical processes that gives rise to the morphology of a surface: deposition, surface diffusion and desorption. The characteristics of the interfaces generated by the combination of deposition and surface…

统计力学 · 物理学 2007-05-23 Juan R. Sanchez

To construct continuum stochastic growth equations for competitive nonequilibrium surface-growth processes of the type RD+X that mixes random deposition (RD) with a correlated-growth process X, we use a simplex decomposition of the height…

统计力学 · 物理学 2015-02-03 A. Kolakowska , M. A. Novotny

We introduce and investigate the stochastic dynamics of the density of local extrema (minima and maxima) of non-equilibrium surface fluctuations. We give a number of exact, analytic results for interface fluctuations described by linear…

统计力学 · 物理学 2009-10-31 Z. Toroczkai , G. Korniss , S. Das Sarma , R. K. P. Zia

We demonstrate, using well-established nonequilibrium limited-mobility solid-on-solid growth models, that mound formation in the dynamical surface growth morphology does not necessarily imply the existence of a surface edge diffusion bias…

统计力学 · 物理学 2009-10-31 S. Das Sarma , P. Punyindu , Z. Toroczkai

Using coarse grained models we investigate the behavior of water adjacent to an extended hydrophobic surface peppered with various fractions of hydrophilic patches of different sizes. We study the spatial dependence of the mean interface…

统计力学 · 物理学 2014-09-09 Adam P. Willard , David Chandler

We consider a system consisting of a geometric evolution equation for a hypersurface and a parabolic equation on this evolving hypersurface. More precisely, we discuss mean curvature flow scaled with a term that depends on a quantity…

偏微分方程分析 · 数学 2022-05-06 Helmut Abels , Felicitas Bürger , Harald Garcke

The dynamic scaling of curved interfaces presents features that are strikingly different from those of the planar ones. Spherical surfaces above one dimension are flat because the noise is irrelevant in such cases. Kinetic roughening is…

统计力学 · 物理学 2009-11-13 Carlos Escudero

A growth model which describes the deposition of particles (or the growth of a rigid crystal) on a disordered substrate is investigated. The dynamic renormalization group is applied to the stochastic growth equation using the Martin, Sigga,…

凝聚态物理 · 物理学 2009-10-22 Yan-Chr Tsai , Yonathan Shapir

We study unstable epitaxy on singular surfaces using continuum equations with a prescribed slope-dependent surface current. We derive scaling relations for the late stage of growth, where power law coarsening of the mound morphology is…

统计力学 · 物理学 2009-10-28 Martin Rost , Joachim Krug

Surface growth is a crucial component of many natural and artificial processes from cell proliferation to additive manufacturing. In elastic systems surface growth is usually accompanied by the development of geometrical incompatibility…

软凝聚态物质 · 物理学 2019-05-08 Lev Truskinovsky , Giuseppe Zurlo

Motivated by recent experimental studies in microbiology, we suggest a modification of the classic ballistic deposition model of surface growth, where the memory of a deposition at a site induces more depositions at that site or its…

元胞自动机与格子气 · 物理学 2022-02-24 Ahmed Roman , Ruomin Zhu , Ilya Nemenman

The properties of a wide variety of growing models, generically called $X/RD$, are studied by means of numerical simulations and analytic developments. The study comprises the following $X$ models: Ballistic Deposition, Random Deposition…

统计力学 · 物理学 2009-11-11 Claudio M. Horowitz , Ezequiel V. Albano

We introduce a minimal model of solid-forming anisotropic molecules that displays, in thermal equilibrium, surface orientational order without bulk orientational order. The model reproduces the nonequilibrium behavior of recent experiments…

统计力学 · 物理学 2021-10-13 Stephen Whitelam , Peter Harrowell

We investigate the shape of a growing interface in the presence of an impenetrable moving membrane. The two distinct geometrical arrangements of the interface and membrane, obtained by placing the membrane behind or ahead of the interface,…

统计力学 · 物理学 2018-08-08 J. Whitehouse , R. A. Blythe , M. R. Evans , D. Mukamel

We study a system of hard-core particles sliding downwards on a fluctuating one-dimensional surface which is characterized by a dynamical exponent $z$. In numerical simulations, an initially random particle density is found to coarsen and…

统计力学 · 物理学 2009-10-31 Dibyendu Das , Mustansir Barma

We have developed a continuum model that explains the complex surface shapes observed in epitaxial regrowth on micron scale gratings. This model describes the dependence of the surface morphology on film thickness and growth temperature in…

材料科学 · 物理学 2007-05-23 A. Ballestad , T. Tiedje , J. H. Schmid , B. J. Ruck , M. Adamcyk

We study stationary fluctuations of conserved slow modes in a two-lane model of hardcore particles which are expected to show universal behaviour. Specifically, we focus on the properties of fluctuations at a special umbilic point where the…

统计力学 · 物理学 2025-09-08 Johannes Schmidt , Žiga Krajnik , Vladislav Popkov

By analytically solving some simple models of phase-ordering kinetics, we suggest a mechanism for the onset of non-equilibrium behaviour in colloid-polymer mixtures. These mixtures can function as models of atomic systems; their physics…

软凝聚态物质 · 物理学 2016-08-31 R. M. L. Evans , W. C. K. Poon

We study the decoherence properties of a two-level (qubit) system homogeneously coupled to an environmental many-body system at a quantum transition, considering both continuous and first-order quantum transitions. In particular, we…

统计力学 · 物理学 2018-12-04 Ettore Vicari