Robustness against perturbations lies at the heart of topological phenomena. If, however, a perturbation such as disorder becomes dominant, it may cause a topological phase transition between topologically non-trivial and trivial phases. Here we experimentally reveal the competition and interplay between topology and quasi-periodic disorder in a Thouless pump realized with ultracold atoms in an optical lattice, by creating a quasi-periodic potential from weak to strong regimes in a controllable manner. We demonstrate a disorder-induced pumping in which the presence of quasi-periodic disorder can induce a non-trivial pump for a specific pumping sequence, whereas no pump is observed in the clean limit. Our highly controllable system, which can also straightforwardly incorporate interatomic interaction, could be a unique platform for studying various disorder-related effects in a wide range of topological quantum phenomena.

抗扰动的鲁棒性是拓扑现象的核心。然而，如果诸如无序之类的扰动占主导地位，它可能会导致拓扑非平凡相和平凡相之间的拓扑相变。在这里，我们通过以可控的方式创建从弱到强状态的准周期势，实验性地揭示了 Thouless 泵中拓扑和准周期无序之间的竞争和相互作用，该泵由光学晶格中的超冷原子实现。我们展示了一种无序诱导的泵送，其中准周期性无序的存在可以诱导特定泵送顺序的非平凡泵送，而在清洁极限中没有观察到泵送。我们高度可控的系统，也可以直接结合原子间的相互作用，