- Letter
Anomalous Floquet Anderson insulator in a continuously driven optical lattice
Phys. Rev. B 109, L121114 – Published 25 March, 2024
DOI: https://doi.org/10.1103/PhysRevB.109.L121114
Abstract
The anomalous Floquet Anderson insulator (AFAI) has been theoretically predicted in stepwise periodically driven models, but its stability under more general driving protocols has not been determined. We show that adding disorder to the anomalous Floquet topological insulator realized with a continuous driving protocol in the experiment by Wintersperger et al. [Nat. Phys. 16, 1058 (2020)], supports an AFAI phase, where, for a range of disorder strengths, all the time averaged bulk states become localized, while the pumped charge in a Laughlin pump setup remains quantized.
