Multiband Fractional Thouless ... Note

Multiband Fractional Thouless Pumps

Author(s): Marius Jürgensen, Jacob Steiner, Gil Refael, and Mikael C. Rechtsman Quantization of particle transport lies at the heart of topological physics. In Thouless pumps—dimensionally reduced versions of the integer quantum Hall effect—quantization is dictated by the integer winding of single-band Wannier states. Here, we show that repulsive interactions can drive a transi… [Phys. Rev. Lett. 135, 166601] Published Tue Oct 14, 2025