Floquet engineering with spatially non-uniform driving fields
Abstract
In Floquet engineering, we apply a time-periodic modulation to change the effective behavior of a wave system. In this work, we generalize Floquet engineering to exploit spatial degrees of freedom, expanding the scope of effective behaviors we can access. We develop a perturbative procedure to engineer space-time dependent driving forces that effectively transform broad classes of tight-binding systems into one another. We demonstrate several applications, including removing disorder, undoing Anderson localization, and enhancing localization to an extreme in spatially modulated waveguides. This procedure straightforwardly extends to other types of physical systems and different Floquet driving field implementations.
Cite
@article{arxiv.2311.00845,
title = {Floquet engineering with spatially non-uniform driving fields},
author = {Stella T. Schindler and Hanan Herzig Sheinfux},
journal= {arXiv preprint arXiv:2311.00845},
year = {2025}
}
Comments
9 pages + appendices, 4 figures. To appear in Photonics Research. Copyright 2025 Optica Publishing Group. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved