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The solution to the long standing problem of the cohesion of organic chain compounds is proposed. We consider the tight-binding dielectric matrix with two electronic bands per chain, determine the corresponding hybridized collective modes,…

凝聚态物理 · 物理学 2009-10-31 P. Zupanovic , A. Bjelis , S. Barisic

Sufficiently strong inter-site interactions in extended-Hubbard and XXZ spin models result in dynamically-bound clusters at neighboring sites. We show that the dynamics of these clusters in two-dimensional lattices is remarkably different…

量子气体 · 物理学 2021-04-28 Wei-Han Li , Arya Dhar , Xiaolong Deng , Luis Santos

Forming macroscopic solid bodies in circumstellar discs requires local dust concentration levels significantly higher than the mean. Interactions of the dust particles with the gas must serve to augment local particle densities, and…

地球与行星天体物理 · 物理学 2019-02-13 Holly L. Capelo , Jan Molacek , Michiel Lambrechts , John Lawson , Anders Johansen , Jurgen Blum , Eberhard Bodenschatz , Haitao Xu

This is a short survey on recent results obtained by the authors on dynamical phase transitions of interacting particle systems. We consider particle systems with exclusion dynamics, but it is conjectured that our results should hold for a…

概率论 · 数学 2013-10-22 Tertuliano Franco , Patrícia Gonçalves , Adriana Neumann

Dynamical features of tagged particles are studied in a one dimensional $A+A \rightarrow kA$ system for $k=0$ and 1, where the particles $A$ have a bias $\epsilon$ $(0 \leq \epsilon \leq 0.5)$ to hop one step in the direction of their…

统计力学 · 物理学 2020-09-15 Reshmi Roy , Purusattam Ray , Parongama Sen

Fluid-mediated interactions between particles in a vibrating fluid lead to both long range attraction and short range repulsion. The resulting patterns include hexagonally ordered micro-crystallites, time-periodic structures, and chaotic…

软凝聚态物质 · 物理学 2009-11-07 Greg A. Voth , B. Bigger , M. R. Buckley , W. Losert , M. P. Brenner , H. A. Stone , J. P. Gollub

We examine the changeover in the particle configurations and the dynamics in dense Lennard-Jones binary mixtures composed of small and large particles. By varying the composition at a low temperature, we realize crystal with defects,…

软凝聚态物质 · 物理学 2011-05-17 Hayato Shiba , Akira Onuki

We study the Brownian dynamics of flexible and semiflexible polymer chains densely grafted on a flat substrate, upon rapid quenching of the system when the quality of solvent becomes poor and chains attempt collapse into a globular state.…

软凝聚态物质 · 物理学 2015-08-19 Anna Lappala , Saahil Mendiratta , Eugene M. Terentjev

The nonintegrable Hamiltonian dynamics of particles placed in a symmetric, spatially periodic potential and subjected to a periodically varying field is explored. Such systems can exhibit a rich diversity of unusual transport features. In…

混沌动力学 · 物理学 2008-07-10 D. Hennig , L. Schimansky-Geier , P. Hänggi

We consider conformation dynamics of a chain-like three-body bead-spring model, in which three point masses are connected in series by two springs and the conformation is defined by the bending angle between the two springs. Previous…

混沌动力学 · 物理学 2026-05-29 Yuki Sogo , Yoshiyuki Y. Yamaguchi

We study the self-organization of spherical particles in an oscillating flow through experiments inside an oscillating box. The interactions between the particles and the time-averaged (steady streaming) flow lead to the formation of either…

流体动力学 · 物理学 2023-05-03 T. J. J. M. van Overveld , H. J. H. Clercx , M. Duran-Matute

We study several examples of kinetically constrained lattice models using dynamically accessible volume as an order parameter. Thereby we identify two distinct regimes exhibiting dynamical slowing, with a sharp threshold between them. These…

统计力学 · 物理学 2009-11-11 Aonghus Lawlor , Paolo De Gregorio , Phil Bradley , Mauro Sellitto , Kenneth A. Dawson

The spatiotemporal dynamics of a damped sine-Gordon chain with sinusoidal nearest-neighbor couplings driven by a constant uniform force are discussed. The velocity characteristics of the chain versus the external force is shown. Dynamics in…

统计力学 · 物理学 2009-10-30 Zhigang Zheng , Bambi Hu , Gang Hu

A system formed by a crowded environment of catalytic obstacles and complex oscillatory chemical reactions is inquired. The obstacles are static spheres of equal radius, which are placed in a random way. The chemical reactions are carried…

The dynamics and spontaneous organization of coupled particles is a classic problem in modeling and applied mathematics. Here we examine the behavior of particles coupled by the Ricker potential, exhibiting finite local repulsion…

适应与自组织系统 · 物理学 2025-11-21 David Sabin-Miller , Daniel M. Abrams

We investigate the influence of quasiperiodic modulations on one-dimensional non-Hermitian diamond lattices with an artificial magnetic flux $\theta$ that possess flat bands. Our study shows that the symmetry of these modulations and the…

无序系统与神经网络 · 物理学 2024-10-17 Hui Liu , Zhanpeng Lu , Xu Xia , Zhihao Xu

Solid state physics deals with systems composed of atoms with strongly bound electrons. The tunneling probability of each electron is determined by interactions that typically extend to neighboring sites, as their corresponding wave…

We establish rigorously that transport is slower than diffusive for a class of disordered one-dimensional Hamiltonian chains. This is done by deriving quantitative bounds on the variance in equilibrium of the energy or particle current, as…

数学物理 · 物理学 2020-02-25 Wojciech De Roeck , Francois Huveneers , Stefano Olla

We study the dynamics of three-dimensional weakly linked Bose-Einstein condensates using a multimode model with an effective interaction parameter. The system is confined by a ring-shaped four-well trapping potential. By constructing a…

量子气体 · 物理学 2018-02-27 M. Nigro , P. Capuzzi , H. M. Cataldo , D. M. Jezek

We demonstrate that a weak disorder in atomic positions introduces spatially localized optical modes in a dense three-dimensional ensemble of immobile two-level atoms arranged in a diamond lattice and coupled by the electromagnetic field.…

无序系统与神经网络 · 物理学 2020-10-21 S. E. Skipetrov