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The Meissner effect for superconductors in spacetimes with torsion is revisited. Two new physical interpretations are presented. The first considers the Landau-Ginzburg theory yields a new symmetry-breaking vacuum depending on torsion. In…

凝聚态物理 · 物理学 2016-08-31 L. C. Garcia de Andrade

We show that for a particular choice of gauge the vector potential of any non-radiating source is spatially localized along with its electric and magnetic fields. Important on its own, this special property of non-radiating sources…

光学 · 物理学 2017-05-03 Nikita A. Nemkov , Alexey A. Basharin , Vassily A. Fedotov

Electrodynamic phenomena related to vortices in superconductors have been studied since their prediction by Abrikosov, and seem to hold no fundamental mysteries. However, most of the effects are treated separately, with no guiding…

超导电性 · 物理学 2012-02-23 A. J. Beekman , J. Zaanen

We investigate the dynamics of magnetic vortices in type II superconductors with normal state pinning sites using the Ginzburg-Landau equations. Simulation results demonstrate hopping of vortices between pinning sites, influenced by…

超导电性 · 物理学 2017-06-14 M. P. Soerensen , N. F. Pedersen , M. Ogren

The Ginzburg-Landau equations play a key role in superconductivity and particle physics. They inspired many imitations in other areas of physics. These equations have two remarkable classes of solutions -- vortices and (Abrikosov) vortex…

数学物理 · 物理学 2016-08-15 Israel Michael Sigal , Tim Tzaneteas

In type-II superconductors, the dynamics of superconducting vortices determine their transport properties. In the Ginzburg-Landau theory, vortices correspond to topological defects in the complex order parameter. Extracting their precise…

超导电性 · 物理学 2015-06-23 C. L. Phillips , T. Peterka , D. Karpeyev , A. Glatz

The time-dependent Ginzburg-Landau approach is used to investigate nonlinear response of a strongly type-II superconductor. The dissipation takes a form of the flux flow which is quantitatively studied beyond linear response. Thermal…

超导电性 · 物理学 2015-05-18 Bui Duc Tinh , Dingping Li , Baruch Rosenstein

Traditional superconductors fall into two categories, type-I, expelling magnetic fields, and type-II, into which magnetic fields exceeding a lower critical field $H_{\rm c1}$ penetrate in form of Abrikosov vortices. Abrikosov vortices are…

超导电性 · 物理学 2024-09-16 M. C. Diamantini , C. A. Trugenberger , V. M. Vinokur

A numerical search for straight superconducting vortices in a U(1) model with a Ginzburg-Landau potential containing a cubic term, is presented. Such vortices exist in a small numerically determined region. The reasons of their existence in…

高能物理 - 唯象学 · 物理学 2008-11-26 C. G. Doudoulakis

The interaction of a spin 1/2 particle (described by the non-relativistic "Dirac" equation of L\'evy-Leblond) with Chern-Simons gauge fields is studied. It is shown, that similarly to the four dimensional spinor models, there is a…

高能物理 - 理论 · 物理学 2008-11-26 Z. Németh

A superconducting rod with a magnetic moment on top develops vortices obtained here through 3D calculations of the Ginzburg-Landau theory. The inhomogeneity of the applied field brings new properties to the vortex patterns that vary…

超导电性 · 物理学 2015-05-14 Antonio R. de C. Romaguera , Mauro M. Doria , F. M. Peeters

We derive the exact equation of motion for a vortex in two- and three- dimensional non-relativistic systems governed by the Ginzburg-Landau equation with complex coefficients. The velocity is given in terms of local gradients of the…

patt-sol · 物理学 2016-09-08 Ola Tornkvist , Elsebeth Schroder

Here we describe a development of computer algorithm to simulate the Time Dependent Ginzburg-Landau equation (TDGL) and its application to understand superconducting vortex dynamics in confined geometries. Our initial motivation to get…

超导电性 · 物理学 2020-05-20 Antonio Lara , César González-Ruano , Farkhad G. Aliev

We use Time-Dependent Ginzburg-Landau theory to study the nucleation of vortices in type II superconductors in the presence of both geometric and material inhomogeneities. The superconducting Meissner state is meta-stable up to a critical…

计算物理 · 物理学 2020-04-29 Alden R. Pack , Jared Carlson , Spencer Wadsworth , Mark K. Transtrum

In the Aharonov-Bohm (AB) effect, interference fringes are observed for a charged particle in the absence of the local overlap with the external electromagnetic field. This notion of the apparent nonlocality of the interaction or the…

量子物理 · 物理学 2025-06-11 Kicheon Kang

We consider non-Abrikosov vortex solutions in liquid metallic hydrogen (LMH) in the framework of two-component Ginzburg-Landau model. We have shown that there are three types of non-Abrikosov vortices depending on chosen boundary conditions…

超导电性 · 物理学 2015-06-16 Liping Zou

We consider the problem of superconducting Ginzburg-Landau (G-L) vortices with antiferromagnetic cores which arise in Zhang's SO(5) model of antiferromagnetism (AF) and high temperature superconductivity (SC). This problem was previously…

超导电性 · 物理学 2009-10-31 S. Alama , A. J. Berlinsky , L. Bronsard , T. Giorgi

The internal chirality of Cooper pairs is shown to modify strongly the response of a superconductor to the local heating by a laser beam. The suppression of the chiral order parameter inside the hot spot appears to induce the supercurrents…

超导电性 · 物理学 2017-12-06 V. L. Vadimov , A. S. Mel'nikov

The Aharonov-Bohm (AB) effect is an important discovery of quantum theory. It serves as a surprising quantum phenomenon in which an electrically charged particle can be affected by an electromagnetic potential, despite being confined to a…

量子物理 · 物理学 2023-11-10 Jing-Ling Chen , Xing-Yan Fan , Xiang-Ru Xie

An Abrikosov vortex in a superconductor carries a flux quantum, Phi_0 = hc/2e, localized at its center, but induces a global 2pi phase rotation in the superconducting condensate. This long-range gauge field outside the area pierced by a…

超导电性 · 物理学 2015-05-18 Taras Golod , Andreas Rydh , Vladimir M. Krasnov