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cond-mat.str-el2024★ 2 cited
A QCA for every SPT
Lukasz Fidkowski, Jeongwan Haah, Matthew B. Hastings
In three dimensions, there is a nontrivial quantum cellular automaton (QCA) which disentangles the three-fermion Walker--Wang model, a model whose action depends on Stiefel--Whitne…
cond-mat.str-el2023★ 24 cited
Non-invertible symmetry-protected topological order in a group-based cluster state
Christopher Fechisin, Nathanan Tantivasadakarn, Victor V. Albert
Despite growing interest in beyond-group symmetries in quantum condensed matter systems, there are relatively few microscopic lattice models explicitly realizing these symmetries,…