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Related papers: Topological Vortex Lines in Two-Gap Superconductor

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We show that a three-dimensional (3D) fully gapped type-II superconductor can feature emergent in-gap Fermi surfaces of Caroli-de Gennes Matricon (CdGM) quasiparticles in the presence of an Abrikosov vortex lattice. In particular, these…

Superconductivity · Physics 2024-03-19 Songyang Pu , Jay D. Sau , Rui-Xing Zhang

Time-reversal invariant superconductors having nodes of vanishing excitation gap support zero-energy boundary states with topological protection. Existing expressions for the topological invariant are given in terms of the Hamiltonian of an…

Superconductivity · Physics 2012-11-29 J. P. Dahlhaus , M. Gibertini , C. W. J. Beenakker

Topological superconductors support Majorana modes, which are quasiparticles that are their own antiparticles and which obey non-Abelian statistics in which successive exchanges of particles do not always commute. Here we investigate…

Superconductivity · Physics 2024-03-29 Jonathan Schirmer , J. K. Jain , C. -X. Liu

We study a 3D model of driven vortices in weakly coupled layered superconductors with strong pinning. Above the critical force $F_c$, we find a plastic flow regime in which pancakes in different layers are uncoupled, corresponding to a…

Superconductivity · Physics 2007-05-23 A. B. Kolton , D. Dominguez , C. J. Olson , N. Gronbech-Jensen

We apply a recently developed effective string theory for vortex lines to the case of two-dimensional trapped superfluids. We do not assume a perturbative microscopic description for the superfluid, but only a gradient expansion for the…

High Energy Physics - Theory · Physics 2017-09-20 Angelo Esposito , Rafael Krichevsky , Alberto Nicolis

We theoretically study Josephson vortex structures in Josephson junctions which have multiple tunneling channels caused by multiple superconducting gaps. Deriving "coupled sine-Gordon equations" from the free-energy taking account of the…

Superconductivity · Physics 2010-01-06 Yukihiro Ota , Masahiko Machida , Tomio Koyama , Hideki Matsumoto

SU(2) lattice gauge theory is studied after eliminating thin monopoles and the smallest thick monopoles. Kinematically this constraint allows thick vortex loops which produce long range Z(2) fluctuations. The thick vortex loops are…

High Energy Physics - Lattice · Physics 2009-11-07 Srinath Cheluvaraja

Topological superconductors are gapped superconductors with gapless and topologically robust quasiparticles propagating on the boundary. In this paper, we present a topological field theory description of three-dimensional time-reversal…

Superconductivity · Physics 2013-04-29 Xiao-Liang Qi , Edward Witten , Shou-Cheng Zhang

It is shown that, in the presence of a magnetic field, a quantized vortex line in a superfluid liquid acquires a linear polarization charge, which is localized near the vortex axis over a length on the order of the coherence length. It is…

Other Condensed Matter · Physics 2023-07-12 A. M. Konstantinov , S. I. Shevchenko

We propose methods to construct gauge invariant decompositions of the nucleon spin, particularly gauge invariant descriptions of the gluon polarization. We show that gauge invariant decompositions of the nucleon spin can be derived…

High Energy Physics - Phenomenology · Physics 2013-06-26 Zhi-Qiang Guo , Ivan Schmidt

In the light of $\phi $--mapping method and topological current theory, the topological structure of the vortex state in TDGL model and the topological quantization of the vortex topological charges are investigated. It is pointed out that…

High Energy Physics - Theory · Physics 2009-10-31 Yishi Duan , Ying Jiang , Tao Xu

We relate physical time with the topology of magnetic field vortices. We base ourselves on a formulation of unimodular gravity where the cosmological constant $\Lambda$ appears as the canonical dual to a variable which on-shell becomes…

High Energy Physics - Theory · Physics 2024-06-24 Altay Etkin , João Magueijo , Farbod-Sayyed Rassouli

We consider a vector gauge theory in 2 + 1 dimensions of the type recently proposed by Radzihovsky and Hermele [1] to describe fracton phases of matter. The theory has U(1)XU(1) vector gauge fields coupled to an additional vector field with…

High Energy Physics - Theory · Physics 2020-12-02 G. Lozano , F. A. Schaposnik

By the application of $\phi$-mapping topological theory, the properties of vortices in quantum R\"ontgen effect is thoroughly studied. The explicit expression of the vorticity is obtained, wherein which the $\delta$ function indicates that…

Other Condensed Matter · Physics 2007-05-23 Yi-Shi Duan , Ru-Nan Huang

We study the effective low-energy fermionic theory of the Kondo-Kitaev model to leading order in the Kondo coupling. Our main goal is to understand the nature of the superconducting instability induced in the proximate metal due to its…

Superconductivity · Physics 2024-05-07 Sondre Duna Lundemo , Asle Sudbø

2+1D multi-component $U(1)$ gauge theories with a Chern-Simons (CS) term provide a simple and complete characterization of 2+1D Abelian topological orders. In this paper, we extend the theory by taking the number of component gauge fields…

Strongly Correlated Electrons · Physics 2022-07-29 Xiuqi Ma , Wilbur Shirley , Meng Cheng , Michael Levin , John McGreevy , Xie Chen

We study a chain of magnetic moments exchange coupled to a conventional three dimensional superconductor. In the normal state the chain orders into a collinear configuration, while in the superconducting phase we find that ferromagnetism is…

Superconductivity · Physics 2016-04-27 M. Schecter , K. Flensberg , M. H. Christensen , B. M. Andersen , J. Paaske

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…

Superconductivity · Physics 2015-06-23 C. L. Phillips , T. Peterka , D. Karpeyev , A. Glatz

We propose that the observed splitting of the vortices in the cuprates into fractional vortices (partons) may be of static rather than of dynamic origin. This interpretation is backed by a study of a model with a dominant d-wave and…

Superconductivity · Physics 2007-09-04 R. Hlubina

The vortex-like solution to the non-linear field equations in a two-dimensional SU(2) gauge theory with the Chern-Simons mass term is found at high temperature. It is derived from the effective Lagrangian including the leading order finite…

High Energy Physics - Theory · Physics 2007-05-23 Vladimir Skalozub , Alexander Zaslavsky
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