Condensate localization in a quasi-periodic structure
Soft Condensed Matter
2007-05-23 v1 Disordered Systems and Neural Networks
Abstract
We propose a set-up of optical laser beams by which one may realize a quasi-one-dimensional Fibonacci array of potential wells for a Bose-Einstein condensate. We use a Bose-Hubbard tight-binding model to evaluate the transport of superfluid Rb87 atoms driven by a constant force through such an array. We show that the minigaps that are generated in the spectral density-of-states by the quasi-periodic disorder give rise to prominent localization effects, which can be observed by measuring the tunnel output of matter into vacuum as a function of the intensity of the applied force.
Cite
@article{arxiv.cond-mat/0405440,
title = {Condensate localization in a quasi-periodic structure},
author = {Y. Eksioglu and P. Vignolo and M. P. Tosi},
journal= {arXiv preprint arXiv:cond-mat/0405440},
year = {2007}
}
Comments
9 pages, 4 figures