Josephson junction of nonAbelian superconductors and nonAbelian Josephson vortices
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 sineGordon 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 sineGordon soliton in the domain wall effective theory. In this paper, we propose a Josephson junction of nonAbelian color superconductors and show that a nonAbelian vortex (color magnetic flux tube) absorbed into it is a nonAbelian Josephson vortex represented as a nonAbelian sineGordon soliton in the domain wall effective theory, that is the U (N) principal chiral model.
 Publication:

Nuclear Physics B
 Pub Date:
 October 2015
 DOI:
 10.1016/j.nuclphysb.2015.07.027
 arXiv:
 arXiv:1502.02525
 Bibcode:
 2015NuPhB.899...78N
 Keywords:

 High Energy Physics  Theory;
 Condensed Matter  Superconductivity;
 High Energy Physics  Phenomenology
 EPrint:
 19 pages, 3 figures, v2: published version