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- W4387634844 abstract "We consider the effects of quasiperiodic spatial modulation on the quantum Hall plateau transition, by analyzing the Chalker-Coddington network model for the integer quantum Hall transition with quasiperiodically modulated link phases. In the conventional case (uncorrelated random phases), there is a critical point separating topologically distinct integer quantum Hall insulators. Surprisingly, the quasiperiodic version of the model supports an extended critical phase for some angles of modulation. We characterize this critical phase and the transitions between critical and insulating phases. For quasiperiodic potentials with two incommensurate wavelengths, the transitions we find are in a different universality class from the random transition. Upon adding more wavelengths they undergo a crossover to the uncorrelated random case. We expect our results to be relevant to the quantum Hall phases of twisted bilayer graphene or other Moir'e systems with large unit cells." @default.
- W4387634844 created "2023-10-14" @default.
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- W4387634844 date "2023-10-11" @default.
- W4387634844 modified "2023-10-15" @default.
- W4387634844 title "Extended critical phase in quasiperiodic quantum Hall systems" @default.
- W4387634844 doi "https://doi.org/10.48550/arxiv.2310.07760" @default.
- W4387634844 hasPublicationYear "2023" @default.
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