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arXiv 2005.12831hep-th
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高阶形式对称与M-理论

Higher Form Symmetries and M-theory

Federica Albertini, Michele Del Zotto, Iñaki García Etxebarria, Saghar S. Hosseini

摘要:

从几何工程的角度出发,利用M-理论中的缺陷群,讨论了量子场论的离散高阶对称性的几何起源。M理论中的通量非对易性导致了缺陷群的(混合)t Hooft反常,它限制了相应的量子场的整体结构。我们分析了四维$\mathcal{N}=1$ SYM规范理论的例子,并从它的字里行间读出了众所周知的全局结构分类。我们将这一分析推广到7维$\mathcal{N}=1$ SYM理论的情况,在那里我们从缺陷群中电1-形式中心对称性和磁4-形式中心对称性之间的混合t Hooft异常中恢复它。详细讨论了复曲面奇点M-理论的五维SCFT的情况。在这种情况下,我们确定相应的1-形式和2-形式的缺陷群,我们解释了如何确定相应的混合t Hooft异常从通量的非交换性。几个预测非传统的5D SCFT。离散的高阶对称性及其异常的匹配为5d对偶性提供了一个有趣的一致性检验。

英文摘要:

We discuss the geometric origin of discrete higher form symmetries of quantum field theories in terms of defect groups from geometric engineering in M-theory. The flux non-commutativity in M-theory gives rise to (mixed) 't Hooft anomalies for the defect group which constrains the corresponding global structures of the associated quantum fields. We analyze the example of 4d $\mathcal{N}=1$ SYM gauge theory in four dimensions, and we reproduce the well-known classification of global structures from reading between its lines. We extend this analysis to the case of 7d $\mathcal{N}=1$ SYM theory, where we recover it from a mixed 't Hooft anomaly among the electric 1-form center symmetry and the magnetic 4-form center symmetry in the defect group. The case of five-dimensional SCFTs from M-theory on toric singularities is discussed in detail. In that context we determine the corresponding 1-form and 2-form defect groups and we explain how to determine the corresponding mixed 't Hooft anomalies from flux non-commutativity. Several predictions for non-conventional 5d SCFTs are obtained. The matching of discrete higher-form symmetries and their anomalies provides an interesting consistency check for 5d dualities.

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