Quantized topological transport mediated by the long-range couplings
Ekaterina S. Lebedeva, Maxim Mazanov, Alexey V. Kavokin, Maxim A. Gorlach
Published: 2025/9/16
Abstract
Certain topological systems with time-varying Hamiltonian enable quantized and disorder-robust transport of excitations. Here, we introduce the modification of the celebrated Thouless pump when the on-site energies remain fixed, while the nearest and next-nearest neighbor couplings vary in time. We demonstrate quantized transport of excitations and propose an experimental implementation using an array of evanescently coupled optical waveguides.