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We obtain analytically a continuum of one-dimensional ballistic extended states in a two-dimensional disordered system, which consists of compactly coupled random and pure square lattices. The extended states give a marginal metallic phase…

无序系统与神经网络 · 物理学 2009-10-31 Shi-Jie Xiong , S. N. Evangelou , E. N. Economou

Athermal models of disordered fibrous networks are highly useful for studying the mechanics of elastic networks composed of stiff biopolymers. The underlying network architecture is a key aspect that can affect the elastic properties of…

软凝聚态物质 · 物理学 2016-01-20 Albert James Licup , Abhinav Sharma , Fred C. MacKintosh

Uniaxial elastomers are characterized by five elastic constants. If their elastic modulus C_5 describing the energy of shear strains in planes containing the anisotropy axis vanishes, they are said to be soft. In spatial dimensions d less…

软凝聚态物质 · 物理学 2009-11-10 Olaf Stenull , T. C. Lubensky

The effect of an electric field on conduction in a disordered system is an old but largely unsolved problem. Experiments cover an wide variety of systems - amorphous/doped semiconductors, conducting polymers, organic crystals, manganites,…

无序系统与神经网络 · 物理学 2015-06-15 K. K. Bardhan , D. Talukdar , U. N. Nandi , C. D. Mukherjee

We analyse how simple local constraints in two dimensions lead a defect to exhibit robust, non-transient, and tunable, subdiffusion. We uncover a rich dynamical phenomenology realised in ice- and dimer-type models. On the microscopic scale…

介观与纳米尺度物理 · 物理学 2025-04-02 Nilotpal Chakraborty , Markus Heyl , Roderich Moessner

In certain analytically-tractable quantum chaotic systems, the calculation of out-of-time-order correlation functions, entanglement entropies after a quench, and other related dynamical observables, reduces to an effective theory of an…

强关联电子 · 物理学 2020-09-30 Tianci Zhou , Adam Nahum

We use two different fully vectorial microscopic models featuring nonresonant and resonant scattering, respectively, to demonstrate the Anderson localization transition for elastic waves in three-dimensional (3D) disordered solids. Critical…

无序系统与神经网络 · 物理学 2018-08-24 S. E. Skipetrov , Y. M. Beltukov

We use particle dynamics simulations to probe the correlations between noise and dynamics in a variety of disordered systems, including superconducting vortices, 2D electron liquid crystals, colloids, domain walls, and granular media. The…

超导电性 · 物理学 2009-11-10 C. J. Olson Reichhardt , C. Reichhardt

Disordered systems like liquids, gels, glasses, or granular materials are not only ubiquitous in daily life and in industrial applications but they are also crucial for the mechanical stability of cells or the transport of chemical and…

无序系统与神经网络 · 物理学 2020-07-06 Zhen Zhang , Walter Kob

Motivated by an application involving additively manufactured bioresorbable polymer scaffolds supporting bone tissue regeneration, we investigate the impact of uncertain geometry perturbations on the effective mechanical properties of…

偏微分方程分析 · 数学 2023-04-19 Patrick Dondl , Yongming Luo , Stefan Neukamm , Steve Wolff-Vorbeck

Recent experiments have imposed controlled swelling patterns on thin polymer films, which subsequently buckle into three-dimensional shapes. We develop a solution to the design problem suggested by such systems, namely, if and how one can…

软凝聚态物质 · 物理学 2011-10-13 M. A. Dias , J. A. Hanna , C. D. Santangelo

A plethora of two-dimensional (2D) materials entered the physics and engineering scene in the last two decades. Their robust, membrane-like sheet permit -- mostly require -- deposition, giving rise to solid-solid dry interfaces whose bodily…

材料科学 · 物理学 2023-06-01 Jin Wang , Ali Khosravi , Andrea Vanossi , Erio Tosatti

In disordered elastic systems, driven by displacing a parabolic confining potential adiabatically slowly, all advance of the system is in bursts, termed avalanches. Avalanches have a finite extension in time, which is much smaller than the…

无序系统与神经网络 · 物理学 2017-12-20 Zhaoxuan Zhu , Kay Joerg Wiese

Confinement can significantly alter fluid properties, offering potential for specific technological applications. However, achieving precise control over the structural complexity of confined fluids and soft matter remains challenging, as…

软凝聚态物质 · 物理学 2024-11-20 Fabio Leoni , Erdal C. Oğuz , Giancarlo Franzese

The tribology of a sliding elastic continuum in contact with a disordered substrate is investigated analytically and numerically via a bead-spring model. The deterministic dynamics of this system exhibits a depinning transition at a finite…

凝聚态物理 · 物理学 2009-10-28 D. Cule , T. Hwa

We introduce a three-dimensional model for polyelectrolyte hydrogel filaments operating in a fluid environment under an electric field. The formulation builds on a morphoelastic framework for inextensible and unshearable rods, such that the…

The effects of three-dimensional perturbations in two-dimensional turbulence are investigated, through a conformal field theory approach. We compute scaling exponents for the energy spectra of enstrophy and energy cascades, in a strong…

高能物理 - 理论 · 物理学 2009-10-28 L. Moriconi

In this article we discuss several aspects of the stochastic dynamics of spin models. The paper has two independent parts. Firstly, we explore a few properties of the multi-point correlations and responses of generic systems evolving in…

统计力学 · 物理学 2009-11-10 Guilhem Semerjian , Leticia F. Cugliandolo , Andrea Montanari

One cannot pull an open, curved string along itself. This fact is clearly reflected in the unwrapping motion of a string or chain as it is dragged around an object, and implies strong consequences for slender structures in passive…

流体动力学 · 物理学 2013-05-22 J. A. Hanna , C. D. Santangelo

We briefly introduce the generic framework of Disordered Elastic Systems (DES), giving a short `recipe' of a DES modeling and presenting the quantities of interest in order to probe the static and dynamical disorder-induced properties of…

无序系统与神经网络 · 物理学 2012-06-29 Elisabeth Agoritsas , Vivien Lecomte , Thierry Giamarchi