Loading and compression of a single two-dimensional Bose gas in an optical accordion
Abstract
The experimental realization of 2D Bose gases with a tunable interaction strength is an important challenge for the study of ultracold quantum matter. Here we report on the realization of an optical accordion creating a lattice potential with a spacing that can be dynamically tuned between 11m and 2m. We show that we can load ultracold Rb atoms into a single node of this optical lattice in the large spacing configuration and then decrease nearly adiabatically the spacing to reach a strong harmonic confinement with frequencies larger than kHz. Atoms are trapped in an additional flat-bottom in-plane potential that is shaped with a high resolution. By combining these tools we create custom-shaped uniform 2D Bose gases with tunable confinement along the transverse direction and hence with a tunable interaction strength.
Keywords
Cite
@article{arxiv.1611.07681,
title = {Loading and compression of a single two-dimensional Bose gas in an optical accordion},
author = {J. L. Ville and T. Bienaimé and R. Saint-Jalm and L. Corman and M. Aidelsburger and L. Chomaz and K. Kleinlein and D. Perconte and S. Nascimbène and J. Dalibard and J. Beugnon},
journal= {arXiv preprint arXiv:1611.07681},
year = {2017}
}