Observation of Density-Induced Tunneling
Quantum Gases
2014-11-13 v1
Abstract
We study the dynamics of bosonic atoms in a tilted one-dimensional optical lattice and report on the first direct observation of density-induced tunneling. We show that the interaction affects the time evolution of the doublon oscillation via density-induced tunneling and pinpoint its density- and interaction-dependence. The experimental data for different lattice depths are in good agreement with our theoretical model. Furthermore, resonances caused by second-order tunneling processes are studied, where the density-induced tunneling breaks the symmetric behavior for attractive and repulsive interactions predicted by the Hubbard model.
Cite
@article{arxiv.1407.0835,
title = {Observation of Density-Induced Tunneling},
author = {Ole Jürgensen and Florian Meinert and Manfred J. Mark and Hanns-Christoph Nägerl and Dirk-Sören Lühmann},
journal= {arXiv preprint arXiv:1407.0835},
year = {2014}
}
Comments
Including supplementary material