Steering Bose-Einstein condensates despite time symmetry
Atomic Physics
2009-04-04 v2
Abstract
A Bose-Einstein condensate in an oscillating spatially asymmetric potential is shown to exhibit a directed current for unbiased initial conditions despite time symmetry. This phenomenon occurs only if the interaction between atoms, treated in mean-field approximation, exceeds a critical value. Our findings can be described with a three-mode model (TMM). These TMM results corroborate well with a many-body study over a time scale which increases with increasing atom number. The duration of this time scale probes the validity of the used mean-field approximation.
Cite
@article{arxiv.0811.3340,
title = {Steering Bose-Einstein condensates despite time symmetry},
author = {Dario Poletti and Giuliano Benenti and Giulio Casati and Peter Hanggi and Baowen Li},
journal= {arXiv preprint arXiv:0811.3340},
year = {2009}
}
Comments
4 pages, 5 figures