论文标题
高形式的对称性和轴支电动力学的3组
Higher-form symmetries and 3-group in axion electrodynamics
论文作者
论文摘要
我们研究了无质量轴，并在$（3+1）$尺寸中的光子和光子的低能量有效理论中研究更高形式的对称性。结果表明，该系统的较高形式的对称性伴随着半分布的3组（2划线模块）结构，可以通过高架对称性的对称发生器的相关函数找到。我们认为，可以用3组变换来描述轴突电动力学中的witten效应和异常的霍尔效应。
We study higher-form symmetries in a low-energy effective theory of a massless axion coupled with a photon in $(3+1)$ dimensions. It is shown that the higher-form symmetries of this system are accompanied by a semistrict 3-group (2-crossed module) structure, which can be found by the correlation functions of symmetry generators of the higher-form symmetries. We argue that the Witten effect and anomalous Hall effect in the axion electrodynamics can be described in terms of 3-group transformations.
