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Parameterized families of 2+1d $G$-cluster states

Strongly Correlated Electrons 2026-01-14 v1 High Energy Physics - Theory Quantum Algebra Quantum Physics

Abstract

We construct a GG-cluster Hamiltonian in 2+1 dimensions and analyze its properties. This model exhibits a G×2Rep(G)G\times2\mathrm{Rep}(G) symmetry, where the 2Rep(G)2\mathrm{Rep}(G) sector realizes a non-invertible symmetry obtained by condensing appropriate algebra objects in Rep(G)\mathrm{Rep}(G). Using the symmetry interpolation method, we construct S1S^1- and S2S^2-parameterized families of short-range-entangled (SRE) states by interpolating an either invertible 00-form or 11-form symmetry contained in G×2Rep(G)G\times2\mathrm{Rep}(G). Applying an adiabatic evolution argument to this family, we analyze the pumped interface mode generated by this adiabatic process. We then explicitly construct the symmetry operator acting on the interface and show that the interface mode carries a nontrivial charge under this symmetry, thereby demonstrating the nontriviality of the parameterized family.

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Cite

@article{arxiv.2601.08616,
  title  = {Parameterized families of 2+1d $G$-cluster states},
  author = {Shuhei Ohyama and Kansei Inamura},
  journal= {arXiv preprint arXiv:2601.08616},
  year   = {2026}
}

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70 pages