Building 1D lattice models with $G$-graded fusion category
Shang-Qiang Ning, Bin-Bin Mao, Chenjie Wang
SciPost Phys. 17, 125 (2024) · published 5 November 2024
- doi: 10.21468/SciPostPhys.17.5.125
- Submissions/Reports
Abstract
We construct a family of one-dimensional (1D) quantum lattice models based on $G$-graded unitary fusion category $\mathcal{C}_G$. This family realize an interpolation between the anyon-chain models and edge models of 2D symmetry-protected topological states, and can be thought of as edge models of 2D symmetry-enriched topological states. The models display a set of unconventional global symmetries that are characterized by the input category $\mathcal{C}_G$. While spontaneous symmetry breaking is also possible, our numerical evidence shows that the category symmetry constrains the models to the extent that the low-energy physics has a large likelihood to be gapless.
Authors / Affiliations: mappings to Contributors and Organizations
See all Organizations.- 1 2 Shang-Qiang Ning,
- 1 3 Bin-Bin Mao,
- 1 Chenjie Wang
- 1 University of Hong Kong [HKU]
- 2 香港中文大學 / Chinese University of Hong Kong [CUHK]
- 3 University of Health and Rehabilitation Sciences
- 香港中文大學 / Chinese University of Hong Kong [CUHK]
- National Natural Science Foundation of China [NSFC]
- Research Grants Council, University Grants Committee (through Organization: University Grants Committee [UGC])