English

The anomalous Floquet Anderson insulator in a continuously driven optical lattice

Quantum Gases 2024-06-11 v1 Disordered Systems and Neural Networks

Abstract

The anomalous Floquet Anderson insulator (AFAI) has been theoretically predicted in step-wise periodically driven models, but its stability under more general driving protocols hasn't been determined. We show that adding disorder to the anomalous Floquet topological insulator realized with a continuous driving protocol in the experiment by K. Wintersperger et. al., Nat. Phys. 16\textbf{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.

Keywords

Cite

@article{arxiv.2312.13589,
  title  = {The anomalous Floquet Anderson insulator in a continuously driven optical lattice},
  author = {Arijit Dutta and Efe Sen and Jun-Hui Zheng and Monika Aidelsburger and Walter Hofstetter},
  journal= {arXiv preprint arXiv:2312.13589},
  year   = {2024}
}

Comments

5 pages, 4 figures in the main text; 6 pages, 4 figures in the supplement. Comments are welcome