Global 3-group symmetry and’t hooft anomalies in axion electrodynamics

Yoshimasa Hidaka, Muneto Nitta, Ryo Yokokura

Research output: Contribution to journalArticlepeer-review


We investigate a higher-group structure of massless axion electrodynamics in (3 + 1) dimensions. By using the background gauging method, we show that the higher-form symmetries necessarily have a global semistrict 3-group (2-crossed module) structure, and exhibit’t Hooft anomalies of the 3-group. In particular, we find a cubic mixed’t Hooft anomaly between 0-form and 1-form symmetries, which is specific to the higher-group structure.

Original languageEnglish
JournalUnknown Journal
Publication statusPublished - 2020 Sep 29

ASJC Scopus subject areas

  • General

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