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(a) Energy spectrum vs. Lr for a 13 × 13 sample. (b) The left panel is the computed local Chern numbers as a function of frequency for Lr = 1.5. The right panel shows two edge states with the frequencies marked in the left panel. (c) The left panel is the local Chern numbers for a bigger disorder of Lr = 2. The right panel shows a bulk state and an edge state, respectively.
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