arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0910.2571hep-th
收藏

F理论中的广义规范对称性

Extended Gauge Symmetries in F-theory

Kang-Sin Choi

摘要:

我们从整体的角度研究F理论中的规范对称性。为此,我们不仅考虑单群(局部),而且考虑具有阿贝尔因子的半单群。一旦我们通过分解判别式来指定完整的规范群,类似于安排7-膜,我们就可以导出物质含量,它们的局部化以及与增强群的关系。来自Calabi-Yau条件和反常取消的全局约束意味着一个统一的群。半单群表现出物质曲线的显式形成和嵌入例外群的非平凡性。此外,对偶杂种优势弦真空与线丛提供了一个指导的统一。

英文摘要:

We study gauge symmetry in F-theory in light of global aspects. For this, we consider not only a simple (local) group, but also a semi-simple group with Abelian factors. Once we specify the complete gauge group by decomposing the discriminant, analogous to arranging 7-branes, we can derive the matter contents, their localization and the relation to enhanced groups. Global constraints coming from Calabi--Yau conditions and anomaly cancellations imply a unified group. The semisiple group shows explicit formation of matter curves and nontriviality of its embedding into exceptional group. Also the dual heterotic string vacua with line bundles provide a guide on the unification.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑