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We present an experimental study of the statistical properties of millimeter-size spheres floating on the surface of a turbulent flow. The flow is generated in a layer of liquid metal by an electromagnetic forcing. By using two magnet…

流体动力学 · 物理学 2016-07-04 Pablo Gutiérrez , Sébastien Aumaître

The random energy landscapes developed by speckle fields can be used to confine and manipulate a large number of micro-particles with a single laser beam. By means of molecular dynamics simulations, we investigate the static and dynamic…

统计力学 · 物理学 2014-08-22 M. Paoluzzi , R. Di Leonardo , L. Angelani

We study some topological properties of attractors.

动力系统 · 数学 2013-04-12 R. N. Ganikhodzhaev , A. T. Pirnapasov

We study the crossover scaling behavior of the height-height correlation function in interface depinning in random media. We analyze experimental data from a fracture experiment and simulate an elastic line model with non-linear couplings…

统计力学 · 物理学 2015-09-30 Y. J. Chen , Stefano Zapperi , James P. Sethna

We present an experimental approach to detect the saturated absorption spectroscopy different from conventional scheme. Using this approach, crossovers are removed to avoid their overlap with other peaks in the spectrum and sensitivity of…

原子物理 · 物理学 2015-03-17 Jun Duan , Xianghui Qi , Xiaoji Zhou , Xuzong Chen

We present an extensive but concise review of our present understanding, largely based on theory and simulation work from our group, on the equilibrium behavior of solid surfaces and nanosystems close to the bulk melting point. In the first…

材料科学 · 物理学 2007-05-23 U. Tartaglino , T. Zykova-Timan , F. Ercolessi , E. Tosatti

We consider fermionic polar molecules in a bilayer geometry where they are oriented perpendicularly to the layers, which permits both low inelastic losses and superfluid pairing. The dipole-dipole interaction between molecules of different…

量子气体 · 物理学 2010-11-29 A. Pikovski , M. Klawunn , G. V. Shlyapnikov , L. Santos

We discuss the transition from a fully decoherent to a (quasi-)condensate regime in a harmonically trapped weakly interacting 1D Bose gas. By using analytic approaches and verifying them against exact numerical solutions, we find a…

原子物理 · 物理学 2013-05-29 Isabelle Bouchoule , Karen V. Kheruntsyan , Gora Shlyapnikov

We study KPZ surfaces on Euclidean lattices and directed polymers on hierarchical lattices subject to different distributions of disorder, showing that universality holds, at odds with recent results on Euclidean lattices. Moreover, we find…

统计力学 · 物理学 2009-10-31 Paolo De Los Rios

We study motion of tagged particles in a harmonic chain of active particles. We consider three models of active particle dynamics - run and tumble particle, active Ornstein-Uhlenbeck particle and active Brownian particle. We investigate the…

统计力学 · 物理学 2022-02-14 Prashant Singh , Anupam Kundu

Muon colliders are expected to naturally have a small spread in beam energy making them an ideal place to study the excitation curve. We present the parameter determinations that are possible from measuring the total cross section near…

高能物理 - 唯象学 · 物理学 2009-10-30 M. S. Berger

We study ion condensation onto a patterned surface of alternating charges. The competition between self-energy and ion-surface interactions leads to the formation of ionic crystalline structures at low temperatures. We consider different…

We use a theoretical model to explore how fluid dynamics, in particular, the pressure gradient and wall shear stress in a channel, affect the deposition of particles flowing in a microfluidic network. Experiments on transport of colloidal…

软凝聚态物质 · 物理学 2023-03-28 Gess Kelly , Navid Bizmark , Bulbul Chakraborty , Sujit S. Datta , Thomas G. Fai

We demonstrate the existence of high--order jamming crossovers in systems of particles with repulsive contact interactions, which originate from the collapse of successive coordination shells. At zero temperature, these crossovers induce an…

软凝聚态物质 · 物理学 2014-01-21 Massimo Pica Ciamarra , Peter Sollich

Deposition of particles while flowing past constrictions is a ubiquitous phenomenon observed in diverse systems. Some common examples are jamming of salt crystals near the orifice of saltshakers, clogging of filter systems, gridlock in…

软凝聚态物质 · 物理学 2021-12-09 P. Prakash , A. Z. Abdulla , M. Varma

In this paper we study the intersection theory on surfaces with abelian quotient singularities and we derive properties of quotients of weighted projective planes. We also use this theory to study weighted blow-ups in order to construct…

代数几何 · 数学 2018-05-04 Enrique Artal Bartolo , Jorge Martín-Morales , Jorge Ortigas-Galindo

Using an electrical method and high-speed imaging we probe drop coalescence down to 10 ns after the drops touch. By varying the liquid viscosity over two decades, we conclude that at sufficiently low approach velocity where deformation is…

流体动力学 · 物理学 2011-03-16 Joseph D. Paulsen , Justin C. Burton , Sidney R. Nagel

We recall fundamental aspects of the pluriclosed flow equation and survey various existence and convergence results, and the various analytic techniques used to establish them. Building on this, we formulate a precise conjectural…

微分几何 · 数学 2018-08-30 Jeffrey Streets

We develop a new theory for Casimir-Lifshitz and Casimir-Polder interactions with semiconductor surfaces that takes into account charge drift in the bulk material. The corresponding frequency-dependent dispersion relations describe a…

量子物理 · 物理学 2009-11-13 Diego A. R. Dalvit , Steve K. Lamoreaux

Particle resuspension refers to the physical process by which solid particles deposited on a surface are, first, detached and, then, entrained away by the action of a fluid flow. In this study, we explore the dynamics of large and heavy…

流体动力学 · 物理学 2024-12-31 Hao Liu , Mireille Bossy , Bernhard Vowinckel , Christophe Henry