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arXiv 2203.10063hep-th
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6维高阶对称性TFT

Higher Form Symmetries TFT in 6d

Fabio Apruzzi

摘要:

$d$维量子场论的对称性和反常性通常被编码在$(d+1)$维拓扑作用量中,称为对称拓扑场论(TFT)。我们推导出对称性TFT的2-形式和1-形式对称性的6D $(1,0)$场论,专注于理论与一个单一的张量多重态(秩1)。我们实现这一点耦合的低能量张量分支行动的背景场的更高形式的对称性,并通过查看动力学和背景场的对称性变换规则。这些变换规则也意味着在3群结构中混合了更高形式的对称性。对于一些特定的和相关的高阶情形,我们也从全息双IIA超引力解导出了对称TFT。对称性TFT作用量包含2-形式对称性和1-形式对称性背景之间的耦合,这导致了通过圆紧化得到的5d KK-理论的1-形式对称性之间的混合反常。我们证实了这一点,由5d有效的低能量库仑支拉格朗日耦合到背景场提供的纯5d分析。我们还导出了具有Chern-Simons能级$q$的5d $SU(p)$超对称规范理论和没有非阿贝尔规范理论描述的5d规范理论在低能时的对称性TFT。最后,我们讨论的命运的2-形式和1-形式对称的秩1 6d场论耦合到重力。

英文摘要:

Symmetries and anomalies of a $d$-dimensional quantum field theory are often encoded in a $(d+1)$-dimensional topological action, called symmetry topological field theory (TFT). We derive the symmetry TFT for the 2-form and 1-form symmetries of 6d $(1,0)$ field theories, focusing on theories with a single tensor multiplet (rank 1). We implement this by coupling the low-energy tensor branch action to the background fields for the higher-form symmetries and by looking at the symmetry transformation rules on dynamical and background fields. These transformation rules also imply a mixing of the higher-form symmetries in a 3-group structure. For some specific and related higher rank cases, we also derive the symmetry TFT from the holographic dual IIA supergravity solutions. The symmetry TFT action contains a coupling between the 2-form symmetry and the 1-form symmetry backgrounds, which leads to a mixed anomaly between the 1-form symmetries of the 5d KK-theory obtained by circle compactification. We confirm this by a pure 5d analysis provided by the 5d effective low-energy Coulomb branch Lagrangian coupled to background fields. We also derive the symmetry TFT for 5d $SU(p)$ supersymmetric gauge theories with Chern-Simons level $q$ and for 5d theories without non-abelian gauge theory description at low-energy. Finally, we discuss the fate of the 2-form and 1-form symmetry of rank 1 6d field theories when coupled to gravity.

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