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Freezing colloidal suspensions widely exists in nature and industry. Interface instability has attracted much attention for the understandings of the pattern formation in freezing colloidal suspensions. However, the interface instability…

材料科学 · 物理学 2016-05-02 Lilin Wang , Jiaxue You , Zhijun Wang , Jincheng Wang , Xin Lin

We study the structure and stability of discrete breathers (both pinned and mobile) in two-dimensional nonlinear anisotropic Schrodinger lattices. Starting from a set of identical one-dimensional systems we develop the continuation of the…

斑图形成与孤子 · 物理学 2009-11-11 J. Gomez-Gardenes , L. M. Floria , A. R. Bishop

In this article we examine the dynamics of a colloidal particle driven by a modulated force over a sinusoidal optical potential energy landscape. Coupling between the competing frequencies of the modulated drive and that of particle motion…

Quantum states of a discrete breather are studied in two ways. One method involves numerical diagonalization of the Hamiltonian, the other uses the path integral to examine correlations in the eigenstates. In both cases only the central…

统计力学 · 物理学 2009-11-11 L. S. Schulman , D. Tolkunov , E. Mihokova

We study experimentally and numerically the existence and stability properties of discrete breathers in a periodic nonlinear electric line. The electric line is composed of single cell nodes, containing a varactor diode and an inductor,…

斑图形成与孤子 · 物理学 2015-05-22 F. Palmero , L. Q. English , J. Cuevas , R. Carretero-González , P. G. Kevrekidis

Reconstructive transformations in layered silicates need a high tem- perature in order to be observed. However, very recently, some systems have been found where transformation can be studied at temperatures 600 C below the lowest…

斑图形成与孤子 · 物理学 2007-06-13 J. F. R. Archilla , J Cuevas , M. D. Alba , M. Naranjo , J. M. Trillo

We consider a family of random locations, called intrinsic location functionals, of periodic stationary processes. This family includes but is not limited to the location of the path supremum and first/last hitting times. We first show that…

概率论 · 数学 2018-04-06 Jie Shen , Yi Shen , Ruodu Wang

A group-theoretical approach for studying localized periodic and quasiperiodic vibrations in 2D and 3D lattice dynamical models is developed. This approach is demonstrated for the scalar models on the plane square lattice. The…

斑图形成与孤子 · 物理学 2011-06-10 George Chechin , Galina Bezuglova , Petr Goncharov

In the present work we revisit the existence, stability and dynamical properties of moving discrete breathers in $\beta$-FPU lattices. On the existence side, we propose a numerical procedure, based on a continuation along a sequence of…

斑图形成与孤子 · 物理学 2022-04-27 H. Duran , J. Cuevas-Maraver , P. G. Kevrekidis , A. Vainchtein

Normal modes provide a fundamental basis for understanding crucial properties of solids, such as the thermal conductivity, the heat capacity and the sound propagation. While the normal modes are excellently described by plane waves in…

软凝聚态物质 · 物理学 2011-04-04 Peng Tan , Ning Xu , A. B. Schofield , Lei Xu

We investigate theoretically the fundamental phenomenon of the spontaneous, noise-induced modulational instability (MI) of a plane wave. The long-term statistical properties of the noise-induced MI have been previously observed in…

可精确求解与可积系统 · 物理学 2019-12-11 Andrey Gelash , Dmitry Agafontsev , Vladimir Zakharov , Gennady El , Stephane Randoux , Pierre Suret

In this work, we study a space-time modulated electro-mechanical system, consisting of an array of coupled cantilevers with their on-site potential provided by electromagnets driven by AC currents. Model equations are derived, and the…

斑图形成与孤子 · 物理学 2026-04-01 Masayuki Kimura , Juan F. R. Archilla , Yusuke Doi , Víctor J. Sánchez-Morcillo

We study the dynamics of an array of nearest-neighbor coupled spatially distributed systems each generating a periodic sequence of short pulses. We demonstrate that unlike a solitary system generating a train of equidistant pulses, an array…

斑图形成与孤子 · 物理学 2017-10-25 D. Puzyrev , A. G. Vladimirov , A. Pimenov , S. V. Gurevich , S. Yanchuk

The nonstationary dynamics of topological solitons (dislocations, domain walls, fluxons) and their bound states in one-dimensional systems with high dispersion are investigated. Dynamical features of a moving kink emitting radiation and…

斑图形成与孤子 · 物理学 2020-08-11 M. M. Bogdan , O. V. Charkina

We analyze the emergence of wiggling temporal localized states in a passively mode-locked Vertical External- Cavity Surface-Emitting Laser composed by a gain chip and a resonant saturable absorber mirror. We show that the wiggling…

光学 · 物理学 2021-05-26 Denis Hessel , Svetlana V. Gurevich , Julien Javaloyes

We present a family of discrete breathers, which exists in a nonlinear polarizability model of ferroelectric materials. The core-shell model is set up in its non-dimensionalized Hamiltonian form and its linear spectrum is examined.…

计算物理 · 物理学 2015-06-03 C. Hoogeboom , P. G. Kevrekidis , A. Saxena , A. R. Bishop

Self-induced transparency mode-locking (or coherent mode-locking, CML) which is based on intracavity self-induced transparency soliton dynamics, allows potentially to achieve nearly single cycle intracavity pulse durations, much below the…

光学 · 物理学 2016-02-05 R. M. Arkhipov , M. V. Arkhipov , I. Babushkin

We study localized modes on a single Ablowitz-Ladik impurity embedded in the bulk or at the surface of a one-dimensional linear lattice. Exact expressions are obtained for the bound state profile and energy. Dynamical excitation of the…

可精确求解与可积系统 · 物理学 2009-11-13 M. I. Molina

A novel approach to identify internal interfacial layers, or IILs, in wall-bounded turbulent flows is proposed. Using a Fuzzy Cluster Method (FCM) on the streamwise velocity component, a unique and unambiguous grouping of the Uniform…

流体动力学 · 物理学 2019-06-11 Fan Duosi , Jing-Lei Xu , Matthew X. Yao , Jean-Pierre Hickey

We consider an infinite chain of particles linearly coupled to their nearest neighbours and subject to an anharmonic local potential. The chain is assumed weakly inhomogeneous. We look for small amplitude discrete breathers. The problem is…

斑图形成与孤子 · 物理学 2015-05-20 Guillaume James , Bernardo Sanchez-Rey , Jesus Cuevas