1-form symmetry and the selection rule of the plaquette valence bond solid phase on kagome lattice

Autor:	Xiong, Zijian
Rok vydání:	2023
Předmět:	Condensed Matter - Strongly Correlated Electrons High Energy Physics - Lattice High Energy Physics - Theory
Druh dokumentu:	Working Paper
Popis:	We study the plaquette valence bond solid phase in a XXZ type spin-1/2 model in the kagome lattice. The low energy theory for this phase is a U(1) lattice gauge theory on the honeycomb lattice. We find that there is an emergent 1-form U(1) symmetry in low energy, and there is a mixed anomaly. We also show that this 1-form symmetry constraints the longitudinal dynamical structure factor and leads to the selection rule relating to the vanishing intensity along some high symmetry momentum paths (e.g. $\Gamma-M$ path). We point out that this emergent 1-form symmetry is robust against the translation symmetry preserving UV perturbation, thus the selection rule will also apply to the model which is obtained by perturbing the classical limit of our model. Comment: 9 pages, 9 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2306.03348 Zobrazit plný text záznamu View this record from Arxiv