On the Strong Coupling Limit of the Faddeev-Hopf Model

On the Strong Coupling Limit of the Faddeev-Hopf Model
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论Faddeev-Hopf模型的强耦合极限

DOI:
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发表时间:
2006
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影响因子:
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通讯作者:
Martin Svensson
Martin Svensson
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作者:
J. Speight;Martin Svensson

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在强耦合极限下,研究了一般黎曼域上具有一般 Kähler 目标空间的 Faddeev-Hopf 模型的变分微积分。在此限制下,该模型与纯 Yang-Mills 理论具有关键相似之处,即第 4 维的共形不变性和无限维对称群。计算了第一和第二变分公式并获得了几个稳定解的例子。特别是,证明了所有沉浸式解决方案都是稳定的。拓扑能量下限位于 2 维和 4 维中。Hopf 映射 $${S^3 光谱行为的明确描述 给出了 ightarrow S^2}$$,并证明了 Ward 关于该映射在完整 Faddeev-Hopf 模型中稳定性的猜想。
The variational calculus for the Faddeev-Hopf model on a general Riemannian domain, with general Kähler target space, is studied in the strong coupling limit. In this limit, the model has key similarities with pure Yang-Mills theory, namely conformal invariance in dimension 4 and an infinite dimensional symmetry group. The first and second variation formulae are calculated and several examples of stable solutions are obtained. In particular, it is proved that all immersive solutions are stable. Topological lower energy bounds are found in dimensions 2 and 4. An explicit description of the spectral behaviour of the Hopf map $${S^3 ightarrow S^2}$$ is given, and a conjecture of Ward concerning the stability of this map in the full Faddeev-Hopf model is proved.
DOI: 10.1515/9781400859306
发表时间: 1988
期刊: --
影响因子: --
作者:
M. Atiyah;N. Hitchin
通讯作者: M. Atiyah;N. Hitchin