Probing quantum transport by engineering correlations in a speckle potential
Quantum Gases
2014-02-18 v2
Abstract
We develop a procedure to modify the correlations of a speckle potential. This procedure, that is suitable for spatial light modulator devices, allows one to increase the localization efficiency of the speckle in a narrow energy region whose position can be easily tuned. This peculiar energy-dependent localization behavior is explored by pulling the potential through a cigar-shaped Bose-Einstein condensate. We show that the percentage of dragged atoms as a function of the pulling velocity depends on the potential correlations below a threshold of the disorder strength. Above this threshold, interference effects are no longer clearly observable during the condensate drag.
Cite
@article{arxiv.1309.4902,
title = {Probing quantum transport by engineering correlations in a speckle potential},
author = {Ardavan Alamir and Pablo Capuzzi and Samir Vartabi Kashanian and Patrizia Vignolo},
journal= {arXiv preprint arXiv:1309.4902},
year = {2014}
}
Comments
8 pages, 8 figures, final version