Exact emergent higher symmetries in bosonic lattice models
arxiv（2023）
Abstract
While higher-form symmetries are a powerful tool in studying a quantum many-body system, not many theories have exact higher-form symmetries. This raises an interesting question: can the phases of a theory without exact higher-form symmetries be characterized by exact emergent higher-form symmetries? Here we argue the answer is yes by constructing effective theories for bosonic lattice Hamiltonian models that capture the system's dynamics at $EMore
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