Quantized nonlinear Thouless pumping.

  title={Quantized nonlinear Thouless pumping.},
  author={Marius J{\"u}rgensen and Sebabrata Mukherjee and Mikael C. Rechtsman},
  volume={596 7870},
The topological protection of wave transport, originally observed in the context of the quantum Hall effect in two-dimensional electron gases1, has been shown to apply broadly to a range of physical platforms, including photonics2-5, ultracold atoms in optical lattices6-8 and others9-12. That said, the behaviour of such systems can be very different from the electronic case, particularly when interparticle interactions or nonlinearity play a major role13-22. A Thouless pump23 is a one… 
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