Faddeev-Hopf knots: dynamics of linked un-knots

被引：131

作者：

Hietarinta, J ^{[1
]}

Salo, P

机构：

[1] Univ Turku, Dept Phys, FIN-20014 Turku, Finland

[2] Univ Helsinki, Helsinki Inst Phys, FIN-00014 Helsinki, Finland

来源：

PHYSICS LETTERS B | 1999年 / 451卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(99)00054-4

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have studied numerically Faddeev-Hopf knots which are defined as those unit-vector fields in R-3 that have a nontrivial Hopf charge and minimize Faddeev's Lagrangian. A given initial configuration was allowed to relax into a (local) minimum using the first order dissipative dynamics corresponding to the steepest descent method. A Linked combination of two un-knots was seen to relax into different minimum energy configurations depending on their charges and their relative handedness and direction. In order to:visualize the results we plot certain gauge-invariant iso-surfaces. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：60 / 67

页数：8

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