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arXiv 1206.4546hep-thhep-ph
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规范非阿贝尔涡旋的超对称破缺

Supersymmetry Breaking on Gauged Non-Abelian Vortices

Kenichi Konishi, Muneto Nitta, Walter Vinci

摘要:

有大量系统的特征是完全破缺的规范对称性,但具有完整的整体色味对角对称性,即,系统处于所谓的色香味锁定阶段。如果规范对称性破缺支持涡旋,则涡旋将发展出非阿贝尔取向的零模并成为非阿贝尔涡旋,这是近几年来研究的一个热点。在本文中,我们考虑的影响,弱测量的完整准确的全球味对称性在这样的系统中,推导出一个有效的描述的光激发存在的涡旋。令人惊讶的后果随之而来。涡旋取向模的涨落通过隧穿过程扩散到体模。当我们的模型嵌入超对称理论时,涡旋仍然是1/2BPS饱和的,但涡旋的有效作用自发地打破了超对称性。

英文摘要:

There are a large number of systems characterized by a completely broken gauge symmetry, but with an unbroken global color-flavor diagonal symmetry, i.e., systems in the so-called color-flavor locked phase. If the gauge symmetry breaking supports vortices, the latter develop non-Abelian orientational zero-modes and become non-Abelian vortices, a subject of intense study in the last several years. In this paper we consider the effects of weakly gauging the full exact global flavor symmetry in such systems, deriving an effective description of the light excitations in the presence of a vortex. Surprising consequences are shown to follow. The fluctuations of the vortex orientational modes get diffused to bulk modes through tunneling processes. When our model is embedded in a supersymmetric theory, the vortex is still 1/2 BPS saturated, but the vortex effective action breaks supersymmetry spontaneously.

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