Non-Equilibrium Mass Transport in the 1D Fermi-Hubbard Model
Quantum Gases
2018-10-01 v4 Strongly Correlated Electrons
Quantum Physics
Abstract
We experimentally and numerically investigate the sudden expansion of fermions in a homogeneous one-dimensional optical lattice. For initial states with an appreciable amount of doublons, we observe a dynamical phase separation between rapidly expanding singlons and slow doublons remaining in the trap center, realizing the key aspect of fermionic quantum distillation in the strongly-interacting limit. For initial states without doublons, we find a reduced interaction dependence of the asymptotic expansion speed compared to bosons, which is explained by the interaction energy produced in the quench.
Keywords
Cite
@article{arxiv.1805.10990,
title = {Non-Equilibrium Mass Transport in the 1D Fermi-Hubbard Model},
author = {S. Scherg and T. Kohlert and J. Herbrych and J. Stolpp and P. Bordia and U. Schneider and F. Heidrich-Meisner and I. Bloch and M. Aidelsburger},
journal= {arXiv preprint arXiv:1805.10990},
year = {2018}
}