Many-body Matter-wave Dark Soliton
Quantum Gases
2014-01-29 v2 Quantum Physics
Abstract
The Gross-Pitaevskii equation - which describes interacting bosons in the mean-field approximation - possesses solitonic solutions in dimension one. For repulsively interacting particles, the stationary soliton is dark, i.e. is represented by a local density minimum. Many-body effects may lead to filling of the dark soliton. Using quasi-exact many-body simulations, we show that, in single realizations, the soliton appears totally dark although the single particle density tends to be uniform.
Keywords
Cite
@article{arxiv.1307.7036,
title = {Many-body Matter-wave Dark Soliton},
author = {Dominique Delande and Krzysztof Sacha},
journal= {arXiv preprint arXiv:1307.7036},
year = {2014}
}
Comments
4-5 pages, 4 figures, version accepted for publication in Physical Review Letters