Dual neutral variables and knot solitons in triplet superconductors

被引：107

作者：

Babaev, E

机构：

[1] Uppsala Univ, Inst Theoret Phys, S-75108 Uppsala, Sweden

[2] NORDITA, DK-2100 Copenhagen, Denmark

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.88.177002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We derive a dual presentation of a free energy functional for spin-triplet superconductors in terms of gauge-invariant variables. The resulting equivalent model in ferromagnetic phase has a form of a version of the Faddeev model. This allows one, in particular, to conclude that spin-triplet superconductors allow formation of stable finite-length closed vortices (knotted solitons).

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页码：4 / 177002

页数：4

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