Knot solitons in a modified Ginzburg-Landau model

被引：0
|
作者：
Jaeykkae, Juha [1 ]
Palmu, Joonatan [2 ]
机构：
[1] Univ Leeds, Sch Math, Leeds LS2 9JT, W Yorkshire, England
[2] Univ Turku, Dept Phys & Astron, FI-20014 Turku, Finland
来源：
PHYSICAL REVIEW D | 2011年 / 83卷 / 10期
基金：
芬兰科学院; 英国工程与自然科学研究理事会;
关键词：
D O I：
10.1103/PhysRevD.83.105015
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study a modified version of the Ginzburg-Landau model suggested by Ward and show that Hopfions exist in it as stable static solutions, for values of the Hopf invariant up to at least 7. We also find that their properties closely follow those of their counterparts in the Faddeev-Skyrme model. Finally, we lend support to Babaev's conjecture that longer core lengths yield more stable solitons and propose a possible mechanism for constructing Hopfions in pure Ginzburg-Landau model.
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页数：6
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