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相关论文: Lessons from vortex dynamics in super media

200 篇论文

The vortex dynamics of a d+is-wave superconductor is studied numerically by simulating the time-dependent Ginzburg-Landau equations. The critical fields, the free flux flow, and the flux flow in the presence of twin-boundaries are…

超导电性 · 物理学 2009-10-31 Qunqing Li , Z. D. Wang , Qiang-Hua Wang

We experimentally characterize the transverse vortex motion and observed some striking features. We found large structures and peaks in the Hall resistance, which can be attributed to the long-range inhomogeneous vortex flow present in some…

超导电性 · 物理学 2009-11-11 J. Lefebvre , M. Hilke , R. Gagnon , Z. Altounian

Turbulent flows of incompressible liquid in two dimensions are comprised of dense systems of vortices. Such system of vortices can be treated as a fluid and itself could be described in terms of hydrodynamics. We develop the hydrodynamics…

流体动力学 · 物理学 2014-09-11 Paul Wiegmann , Alexander G. Abanov

We have investigated the dynamics of vortices in a dilute two dimensional Josephson junction array where a fraction of the superconducting islands is missing. We have used the multiple trapping model to calculate the mobility of vortices…

超导电性 · 物理学 2007-05-23 Md. Ashrafuzzaman , Hans Beck

Fil {\it et al.} has proposed an interesting experimental method to investigate vortex dynamics. Some preliminary results have been obtained. In this comment I discuss a few missing but strongly related theoretical models and experiments on…

超导电性 · 物理学 2007-06-19 P Ao

Vortex states in the mixture of ultracold atomic clouds of bosons and fermions are investigated using the effective Hamiltonian for the Bose subsystem. A stability of the Bose system in the case of attractive interaction between components…

统计力学 · 物理学 2013-05-29 N. M. Chtchelkatchev , S. -T. Chui , V. N. Ryzhov

What is the fundamental reason for Hall Anomaly in Type II Superconductors: Independent Vortex Dynamics Effect or a Manifestation of Vortex Many-Body Effect? For a long time researchers in this field had not realized the importance of…

超导电性 · 物理学 2020-07-15 P Ao

I review the basic physics of ultracold dilute trapped atomic gases, with emphasis on Bose-Einstein condensation and quantized vortices. The hydrodynamic form of the Gross-Pitaevskii equation (a nonlinear Schr{\"o}dinger equation)…

量子气体 · 物理学 2015-05-19 Alexander L. Fetter

The effects of the coupling between two electronic condensates in two-gap mesoscopic superconductors are studied within the Ginzburg-Landau theory using a finite difference technique. In applied magnetic field, we derive the dependency of…

超导电性 · 物理学 2015-03-17 R. Geurts , M. V. Milošević , F. M. Peeters

Wave scattering phenomena are ubiquitous in almost all Sciences, from Biology to Physics. Interestingly, it has been shown many times that different physical systems are the stage to the same processes. The discoveries of such analogies…

广义相对论与量子宇宙学 · 物理学 2021-11-04 Theo Torres

The anomalous Hall effect in type-II conventional and high-Tc superconductors is investigated based on the proposed novel theory of the thermally activated motion of vortex bundles over a directional-dependent energy barrier. Our…

超导电性 · 物理学 2007-05-23 Wei Yeu Chen , Ming Ju Chou

The mixed phase of extremely type-II layered superconductors in perpendicular magnetic field is studied theoretically via the layered XY model with uniform frustration. A partial duality analysis is carried out in the weak-coupling limit.…

超导电性 · 物理学 2008-12-18 J. P. Rodriguez

The dynamics of thermally excited vortices in a dilute two-dimensional Josephson junction array where a fraction of the superconducting islands is missing has been investigated using a multiple trapping model. An expression for the…

统计力学 · 物理学 2007-05-23 Md. Ashrafuzzaman , Massimiliano Capezzali , Hans Beck

We introduce a new method of statistical analysis to characterise the dynamics of turbulent fluids in two dimensions. We establish that, in equilibrium, the vortex distributions can be uniquely connected to the temperature of the vortex…

A general phenomenological theory describing dynamics of Josephson vortices coupled to wide class of linear waves in layered high-T$_c$ superconductors is developed. The theory is based on hydrodynamic long wave approximation and describes…

超导电性 · 物理学 2010-01-05 A. V. Chiginev , V. V. Kurin

Massive electrodynamics for London's superconductivity and Josephson effect are derived. The propagation of massive boson inside a medium yields electric phenomena that are reflected in the Josephson effect. Critical force, magnetic field…

综合物理 · 物理学 2018-03-08 A. I. Arbab

The study of superconducting materials that also possess nontrivial correlations or interactions remains an active frontier of condensed matter physics. NbSe$_2$ belongs to this class of superconductors and recent research has focused on…

超导电性 · 物理学 2020-11-18 S. Tran , J. Sell , J. R. Williams

The properties of vortices in Josephson junction arrays are investigated in the quantum regime near the superconductor-insulator transition. We derive and study an effective action for vortex dynamics that is valid in the region where the…

凝聚态物理 · 物理学 2009-10-22 Anne van Otterlo , Rosario Fazio

Quantum vortices in superfluids may capture matter and deposit it inside their core. By doping vortices with foreign particles one can effectively visualize them and study experimentally. To acquire a better understanding of the interaction…

量子气体 · 物理学 2017-11-22 I. A. Pshenichnyuk

Physical arguments are presented to show that the Hall anomaly is an effect of the vortex many-body correlation rather than that of an individual vortex. Quantitatively, the characteristic energy scale in the problem, the vortex vacancy…

凝聚态物理 · 物理学 2009-10-30 P. Ao