The chiral edge modes of the honeycomb Hofstadter model are mapped to Kitaev chains, giving a Hall conductance formula for arbitrary flux and a stability criterion U > 4Δ against on-site repulsion.
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Topological states in the Hofstadter model on a honeycomb lattice
The chiral edge modes of the honeycomb Hofstadter model are mapped to Kitaev chains, giving a Hall conductance formula for arbitrary flux and a stability criterion U > 4Δ against on-site repulsion.