Acoustic metamaterials with a synthetic dimension directly show the predicted returning Thouless pump, multicellular Wannier functions, and gapless edge modes of a delicate topological insulator.
Niu, Towards a quantum pump of electric charges, Phys
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Observation of returning Thouless pumping
Acoustic metamaterials with a synthetic dimension directly show the predicted returning Thouless pump, multicellular Wannier functions, and gapless edge modes of a delicate topological insulator.