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arXiv 0806.2938hep-thhep-lathep-ph
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Yang-Mills理论中的表面算符和磁自由度

Surface operators and magnetic degrees of freedom in Yang-Mills theories

A. Di Giacomo, V. I. Zakharov

摘要:

磁自由度是通过违反比安基恒等式和与奇异场相关联来表现的。此外,这些奇异性不应导致颜色不守恒。我们认为约束的解决方案是奇异场或缺陷本质上是阿贝尔的。最近提出的表面算子似乎代表了这个约束的一般解决方案,可以作为一个原型的磁自由度。一些基本的晶格观测,如阿贝尔优势的限制领域,然后解释为原来的非阿贝尔不变性的后果。

英文摘要:

Magnetic degrees of freedom are manifested through violations of the Bianchi identities and associated with singular fields. Moreover, these singularities should not induce color non-conservation. We argue that the resolution of the constraint is that the singular fields, or defects are Abelian in nature. Recently proposed surface operators seem to represent a general solution to this constraint and can serve as a prototype of magnetic degrees of freedom. Some basic lattice observations, such as the Abelian dominance of the confining fields, are explained then as consequences of the original non-Abelian invariance.

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