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
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Abstract
We construct a family of one-dimensional (1D) quantum lattice models based on G-graded unitary fusion category CG. 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 CG. 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.
Cited by 1

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])