We propose a novel method for trapping Bose-condensed atoms using a white-light interference fringe. Confinement frequencies of tens of kHz can be achieved in conjunction with trap depths of only a few micro-K. We estimate that lifetimes on the order of 10 s can be achieved for small numbers of atoms. The tight confinement and shallow depth permit tunneling processes to be used for studying interaction effects and for applications in quantum information.
@article{arxiv.cond-mat/0309316,
title = {A white-light trap for Bose-Einstein condensates},
author = {C. A. Sackett and B. Deissler},
journal= {arXiv preprint arXiv:cond-mat/0309316},
year = {2009}
}