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arXiv 1102.2259hep-thcond-mat.supr-con
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修正的Ginzburg-Landau模型中的纽结孤子

Knot solitons in modified Ginzburg-Landau model

Juha Jäykkä, Joonatan Palmu

摘要:

我们研究了一个修改后的版本的Ginzburg-Landau模型提出的沃德,并表明,存在于它作为稳定的静态解决方案的霍普夫不变量的值至少为7。我们还发现,他们的属性密切遵循他们的同行在Faddeev-Skyrme模型。最后,我们支持了Babaev的猜想,即更长的芯长度产生更稳定的孤子,并提出了一种可能的机制,在纯Ginzburg-Landau模型中构造Hopfions。

英文摘要:

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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