The anomalous Floquet Anderson insulator in a continuously driven optical lattice

Autor:	Dutta, Arijit, Sen, Efe, Zheng, Jun-Hui, Aidelsburger, Monika, Hofstetter, Walter
Rok vydání:	2023
Předmět:	Condensed Matter - Quantum Gases Condensed Matter - Disordered Systems and Neural Networks
Zdroj:	Phys. Rev. B 109, L121114 (2024)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.109.L121114
Popis:	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. $\textbf{16}$, 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. Comment: 5 pages, 4 figures in the main text; 6 pages, 4 figures in the supplement. Comments are welcome
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2312.13589 Zobrazit plný text záznamu View this record from Arxiv