Floquet dynamics in driven Fermi-Hubbard systems
Abstract
We study the dynamics and timescales of a periodically driven Fermi-Hubbard model in a three-dimensional hexagonal lattice. The evolution of the Floquet many-body state is analyzed by comparing it to an equivalent implementation in undriven systems. The dynamics of double occupancies for the near- and off-resonant driving regime indicate that the effective Hamiltonian picture is valid for several orders of magnitude in modulation time. Furthermore, we show that driving a hexagonal lattice compared to a simple cubic lattice allows to modulate the system up to 1~s, corresponding to hundreds of tunneling times, with only minor atom loss. Here, driving at a frequency close to the interaction energy does not introduce resonant features to the atom loss.
Cite
@article{arxiv.1808.00506,
title = {Floquet dynamics in driven Fermi-Hubbard systems},
author = {Michael Messer and Kilian Sandholzer and Frederik Görg and Joaquín Minguzzi and Rémi Desbuquois and Tilman Esslinger},
journal= {arXiv preprint arXiv:1808.00506},
year = {2018}
}
Comments
13 pages, 7 figures