Josephson junction of non-Abelian superconductors and non-Abelian Josephson vortices

2015/02/28 by Muneto Nitta · 1 citation
Materials Science · Mathematics · Physics and Astronomy · #Abelian group #Condensed matter physics #Iron-based superconductors research #Josephson effect #Josephson energy #Josephson phase #Mathematics #Physics #Physics of Superconductivity and Magnetism #Pi Josephson junction #Pure mathematics #Superconductivity #Superconductivity in MgB2 and Alloys #Vortex #cond-mat.supr-con #hep-ph #hep-th

paper · pdf · doi:10.1016/j.nuclphysb.2015.07.027

published as Nucl.Phys.B899:78-90,2015 · 19 pages, 3 figures, v2: published version

openalex publication_date 2015/07/29 · arxiv created 2015/08/06 · arxiv updated 2015/08/07 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

A Josephson junction is made of two superconductors sandwiching an insulator, and a Josephson vortex is a magnetic vortex (flux tube) absorbed into the Josephson junction, whose dynamics can be described by the sine-Gordon equation. In a field theory framework, a flexible Josephson junction was proposed, in which the Josephson junction is represented by a domain wall separating two condensations and a Josephson vortex is a sine-Gordon soliton in the domain wall effective theory. In this paper, we propose a Josephson junction of non-Abelian color superconductors and show that a non-Abelian vortex (color magnetic flux tube) absorbed into it is a non-Abelian Josephson vortex represented as a non-Abelian sine-Gordon soliton in the domain wall effective theory, that is the U(N) principal chiral model.

Citations

• Effective world-sheet theory of color magnetic flux tubes in dense QCD
• Instantons in the Higgs phase
• On the moduli space of semilocal strings and lumps
• Vortex-line models for dual strings
• Incarnations of instantons
• Construction of Non-Abelian Walls and their Complete Moduli Space
• Manifest supersymmetry for BPS walls in =2 nonlinear sigma models
• D-brane construction for non-Abelian walls
• Non-Abelian vortices and monopoles in SO(N) theories
• Semisuperfluid strings in high density QCD
• Deconfinement of vortices with continuously variable fractions of the unit flux quanta in two-gap superconductors
• Domain lines as fractional strings
• Non-Abelian semilocal strings inN=2supersymmetric QCD
• Global structure of moduli space for BPS walls
• Non-Abelian walls in supersymmetric gauge theories
• Color superconductivity in dense quark matter
• Vacua of Massive Hyper-Kahler Sigma Models with Non-Abelian Quotient
• Non-Abelian sine-Gordon solitons
• Color magnetic flux tubes in dense QCD
• All exact solutions of a1/4Bogomol’nyi-Prasad-Sommerfield equation

Cited by

• Field theoretical model of multilayered Josephson junction and dynamics of Josephson vortices