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北美退伍军人节(Veterans Day),12 日无更新
arXiv 2006.06152hep-thcond-mat.mes-hallmath-phmath.MP
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用高维Landau模型统一构造Skyrme型非线性西格玛模型

A Unified Construction of Skyrme-type Non-linear sigma Models via The Higher Dimensional Landau Models

Kazuki Hasebe

摘要:

朗道模型和非线性西格玛模型之间有一个奇特的对应关系:将朗道模型的基流形重新解释为场流形,将朗道模型转换为具有相同全局和局部对称性的非线性西格玛模型。基于高维Landau模型的维数层次的思想,我们利用这种对应关系给出了一个系统的构造高维非线性西格玛模型的方法.基于非阿贝尔单极子的张量规范理论,我们导出了$2k$维的$O(2k+1)$非线性西格玛模型.得到的非线性西格玛模型是具有$O(2k)$局部对称性的Skyrme型非线性西格玛模型。通过对Chern-Simons张量场论的降维,我们还导出了在$2k-1$维上的Skyrme型$O(2k)$非线性西格玛模型,它实现了原模型和其它Skyrme模型作为它们的特例.作为一个统一的描述,我们探讨了Skyrme型$O(d+1)$非线性西格玛模型,并阐明了其基本性质,如孤子配置的稳定性,尺度不变的解决方案,以及具有较高的绕组数的场配置。

英文摘要:

A curious correspondence has been known between Landau models and non-linear sigma models: Reinterpreting the base-manifolds of Landau models as field-manifolds, the Landau models are transformed to non-linear sigma models with same global and local symmetries. With the idea of the dimensional hierarchy of higher dimensional Landau models, we exploit this correspondence to present a systematic procedure for construction of non-linear sigma models in higher dimensions. We explicitly derive $O(2k+1)$ non-linear sigma models in $2k$ dimension based on the parent tensor gauge theories that originate from non-Abelian monopoles. The obtained non-linear sigma models turn out to be Skyrme-type non-linear sigma models with $O(2k)$ local symmetry. Through a dimensional reduction of Chern-Simons tensor field theories, we also derive Skyrme-type $O(2k)$ non-linear sigma models in $2k-1$ dimension, which realize the original and other Skyrme models as their special cases. As a unified description, we explore Skyrme-type $O(d+1)$ non-linear sigma models and clarify their basic properties, such as stability of soliton configurations, scale invariant solutions, and field configurations with higher winding number.

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