If quasiperiodicity acts analogously to random disorder, then Anderson's theorem for disordered superconductors indicates that unconventional (e.g., p- or d-wave) superconductivity will be suppressed in the presence of nonmagnetic impurities. Here, the authors find that unconventional superconductivity in a quasicrystal is suppressed only above a critical strength of the quasiperiodic potential. This suggests a qualitative distinction between quasiperiodic and disordered systems, with implications for our understanding of superconductivity in twisted moir\'e materials.
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Ticea et al. (2024) studied this question.
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