Journal
PHYSICAL REVIEW B
Volume 106, Issue 11, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.106.115104
Keywords
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Funding
- NSF CAREER [DMR-1846109]
- Alfred P. Sloan foundation
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We propose a general construction method for 2D and 3D topological phases enriched by U(1) symmetry, with finite-dimensional Hilbert space per site. The construction starts from a commuting projector model and adds U(1) charges to achieve the desired topological phases. We demonstrate that all 2D U(1) symmetry-enriched topological phases with gapped boundaries can be realized using our construction, and we also construct a large class of 3D topological phases with U(1) symmetry fractionalized on particles or loop excitations.
We propose a general construction of commuting projector lattice models for 2D and 3D topological phases enriched by U(1) symmetry, with finite-dimensional Hilbert space per site. The construction starts from a commuting projector model of the topological phase and decorates U(1) charges to the state space in a consistent manner. We show that all 2D U(1) symmetry-enriched topological phases, which allow gapped boundaries without breaking the symmetry, can be realized through our construction. We also construct a large class of 3D topological phases with U(1) symmetry fractionalized on particles or loop excitations.
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