中文
相关论文

相关论文: Attractive Interaction between Vortex and Anti-vor…

200 篇论文

During this internship, the starting vortex and its shedding from the trailing edge of an airfoil moving at constant acceleration in $^4$He has been studied. The airfoil has an angle of attack of 49.1{\deg} and corresponds to the NACA 0012,…

流体动力学 · 物理学 2025-02-03 Brichet Lyse

The dynamic phase diagram of vortex lattices driven in disorder is calculated in two and three dimensions. A modified Lindemann criterion for the fluctuations of the distance of neighboring vortices is used, which unifies previous analytic…

超导电性 · 物理学 2009-10-30 Stefan Scheidl , Valerii M. Vinokur

By assuming a self-similar structure for Kelvin waves along vortex loops with successive smaller scale features, we model the fractal dimension of a superfluid vortex tangle in the zero temperature limit. Our model assumes that at each step…

其他凝聚态物理 · 物理学 2015-05-18 David Jou , Maria Stella Mongiovi' , Michele Sciacca , Carlo F. Barenghi

A symmetric anti-parallel quantum pair of vortices is simulated using the three-dimensional Gross-Pitaevski equations. The initial development before cores interact directly demonstrates the traditional vortex dynamics of stretching,…

量子气体 · 物理学 2010-09-22 Robert M. Kerr

Experiments are performed to investigate the interaction of a vortex ring (Reynolds number based on circulation (Re_Gamma = 10500) with perforated surface (open area ratio, phi_1 = 0.24 and phi_2 = 0.44) with different included angles…

流体动力学 · 物理学 2024-09-24 Siddhant Jain , Saini Jatin Rao , Saptarshi Basu

We consider a two-leg boson ladder in an artificial U(1) gauge field and show that, in the presence of interleg attractive interaction, the flux induced Vortex state can be melted by dislocations. For increasing flux, instead of the…

量子气体 · 物理学 2017-07-26 E. Orignac , R. Citro , M. Di Dio , S. De Palo

A mechanism of a pinning of the quantized matter wave vortices by optical vortices in a specially arranged optical dipole traps is discussed. The vortex-antivortex optical arrays of rectangular symmetry are shown to transfer angular orbital…

斑图形成与孤子 · 物理学 2015-05-13 A. Yu. Okulov

We investigate the ground state properties of the repulsive interacting bosons in an one dimensional rotating lattice ring, and reveal that the superfluid density of the system and the mass current it can carry in the rotating coordinate…

其他凝聚态物理 · 物理学 2007-05-23 Qi Zhou

We theoretically study the relaxation of high energy single particle excitations into molecules in a system of attractive fermions in an optical lattice, both in the superfluid and the normal phase. In a system characterized by an…

量子气体 · 物理学 2013-05-29 Rajdeep Sensarma , David Pekker , Ana Maria Rey , Mikhail Lukin , Eugene Demler

We investigate the dynamics of quantized vortices in a model two-dimensional supersolid. Starting from an effective action that captures the dynamics of the superfluid condensate and its coupling to the lattice displacements, we integrate…

量子气体 · 物理学 2024-09-10 Chi-Deuk Yoo , Alan T. Dorsey

Theoretical considerations are made of superfluid turbulence in the Kelvin wave cascade regime at low temperatures (T < 1K) and length scales of the order or smaller than the intervortical distance. The energy spectrum is shown to be in…

其他凝聚态物理 · 物理学 2017-12-07 Bhimsen Shivamoggi

Vortices are one of the most promising mechanisms to locally concentrate millimeter dust grains and allow the formation of planetesimals through gravitational collapse. The outer disk around the binary system HD 142527 is known for its…

地球与行星天体物理 · 物理学 2021-06-09 Y. Boehler , F. Ménard , C. M. T. Robert , A. Isella , C. Pinte , J. -F. Gonzalez , G. van der Plas , E. Weaver , R. Teague , H. Garg , H. Méheut

It was recently shown that wet active matter may form synchronized rotating vortices in a square lattice, similar to an antiferromagnetic Ising model (by considering rotation direction as spin projections). In this letter, we investigate…

软凝聚态物质 · 物理学 2024-10-23 Felipe P. S. Junior , Jorge L. C. Domingos , W. P. Ferreira , F. Q. Potiguar

The dynamics of quantized vortices is studied in superfluid 3He-B after a rapid stop of rotation. We use Andreev reflection of thermal excitations to monitor vortex motion with quartz tuning fork oscillators in two different experimental…

其他凝聚态物理 · 物理学 2012-07-20 Jaakko Hosio , Vladimir Eltsov , Matti Krusius , Jere Mäkinen

We investigate the effect of particle inertia on the merger of co-rotating dusty vortex pairs at semi-dilute concentrations. In a particle-free flow, the merger is triggered once the ratio of vortex core size to vortex separation reaches a…

流体动力学 · 物理学 2023-12-06 Shuai Shuai , Anubhab Roy , M. Houssem Kasbaoui

The motion of noncircular two-dimensional vortices is shown to depend on a form of coupling between vortex ellipticity and the gradient of fluid density. The approach is based on the perspective that an elliptic vortex can be described as…

流体动力学 · 物理学 2021-09-29 Jasmine M. Andersen , Andrew A. Voitiv , Mark E. Siemens , Mark T. Lusk

Rigid particles suspended on a micropolar fluid provide microstructure that coexists and interacts with the local rotation of the fluid given by the vorticity. In this work we prove that the particles' angular velocity and the vorticity…

偏微分方程分析 · 数学 2023-11-10 Robert Guterres , Wilberclay Melo , César Niche , Cilon Perusato , Paulo Zingano

It is difficult to derive the solid--fluid transition from microscopic models. We introduce particle systems whose potentials do not decay with distance and calculate their partition function exactly using a method similar to that for…

统计力学 · 物理学 2015-09-04 Hisato Komatsu

The decay of quantum vortex rings in counterflow regimes, visualized in Helium II with the help of solid hydrogen particles trapped to their cores, has been a puzzling issue within the usual description of superfluid vortex dynamics,…

流体动力学 · 物理学 2021-05-19 L. Moriconi

Recently, detailed real space imaging using scanning tunneling spectroscopy of the vortex lattice in a weakly pinned a-MoGe thin film revealed that the vortex lattice melts in two steps with temperature or magnetic field, going first from a…