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arXiv 2304.01550hep-thcond-mat.stat-mechhep-lat
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四维中的不可逆对称性与边界

Non-invertible symmetries and boundaries in four dimensions

Masataka Koide, Yuta Nagoya, Satoshi Yamaguchi

AI总结:

本文利用不可逆对称性研究四维 $\mathbb{Z}_2$ 格点规范理论的边界条件,通过 KWW 对偶确定边界权重,并利用半球配分函数之比约束边界重整化群流。

摘要:

我们利用不可逆对称性研究具有边界的量子场论。以四维 $\mathbb{Z}_2$ 格点规范理论在临界点的三类边界条件为例。边界上元素的权重被确定,使得这些边界条件通过 Kramers-Wannier-Wegner (KWW) 对偶相互关联。换言之,要求终止于边界上的 KWW 对偶缺陷是拓扑的。此外,我们得到了具有这些边界条件的半球配分函数之比;这一结果在四维中猜想的 g-定理假设下约束了边界重整化群流。

英文摘要:

We study quantum field theories with boundary by utilizing non-invertible symmetries. We consider three kinds of boundary conditions of the four dimensional $\mathbb{Z}_2$ lattice gauge theory at the critical point as examples. The weights of the elements on the boundary is determined so that these boundary conditions are related by the Kramers-Wannier-Wegner (KWW) duality. In other words, it is required that the KWW duality defects ending on the boundary is topological. Moreover, we obtain the ratios of the hemisphere partition functions with these boundary conditions; this result constrains the boundary renormalization group flows under the assumption of the conjectured g-theorem in four dimensions.

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。

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