Mitigating higher-band heating in Floquet-Hubbard lattices via two-tone driving
Quantum Gases
2025-07-23 v2 Mesoscale and Nanoscale Physics
Atomic Physics
Quantum Physics
Abstract
Multi-photon resonances to high-lying energy levels represent an unavoidable source of Floquet heating in strongly driven quantum systems. In this work, we extend the recently developed two-tone approach of 'cancelling' multi-photon resonances to shaken lattices in the Hubbard regime. Our experiments show that even for strong lattice shaking the inclusion of a weak second drive leads to cancellation of multi-photon heating resonances. Surprisingly, the optimal cancelling amplitude depends on the Hubbard interaction strength , in qualitative agreement with exact diagonalisation calculations. Our results call for novel analytical approaches to capture the physics of strongly-driven-strongly-interacting many-body systems.
Cite
@article{arxiv.2410.12308,
title = {Mitigating higher-band heating in Floquet-Hubbard lattices via two-tone driving},
author = {Yuanning Chen and Zijie Zhu and Konrad Viebahn},
journal= {arXiv preprint arXiv:2410.12308},
year = {2025}
}