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arXiv · 2509.13553

Quantized topological transport mediated by the long-range couplings

Ekaterina S. Lebedeva·Maxim Mazanov·Alexey V. Kavokin·Maxim A. Gorlach
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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.

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Ekaterina S. Lebedeva, Maxim Mazanov, Alexey V. Kavokin, Maxim A. Gorlach. 2025-09-16. Quantized topological transport mediated by the long-range couplings. https://arxiv.org/abs/2509.13553

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