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arXiv 2211.04461hep-th
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低阶对称

Lower-Form Symmetries

Thomas Vandermeulen

摘要:

当在$d$时空维中测量一个$(d-1)$形式的对称性时,人们在形式上期望规范理论携带一个对偶的$-1$形式的对称性。这项工作的重点是研究这种对称性,特别是通过时空填充拓扑算子,实现他们,在二维场论(着眼于一般的量子场论)。由于理论与$(d-1)$形式的对称性是已知的,相当于当地的理论的直接和,我们审查如何衡量一个$(d-1)$形式的对称项目到一个单一的组成部分,在这个总和,并解释如何衡量所产生的$-1$形式的对称性恢复直接和。

英文摘要:

When gauging a $(d-1)$-form symmetry in $d$ spacetime dimensions, one formally expects the gauged theory to carry a dual $-1$-form symmetry. This work focuses on the study of such symmetries, in particular via the spacetime-filling topological operators that implement them, in two-dimensional field theory (with an eye towards general quantum field theory). As theories with $(d-1)$-form symmetries are known to be equivalent to direct sums of local theories, we review how gauging a $(d-1)$-form symmetry projects onto a single component in this sum, and explain how gauging the resulting $-1$-form symmetry restores the direct sum.

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