Fluxon analogues and dark solitons in linearly coupled Bose-Einstein condensates
Pattern Formation and Solitons
2015-05-28 v2 Quantum Gases
Classical Physics
Abstract
Two effectively one-dimensional parallel coupled Bose-Einstein condensates in the presence of external potentials are studied. The system is modelled by linearly coupled Gross-Pitaevskii equations. In particular, grey-soliton-like solutions representing analogues of superconducting Josephson fluxons as well as coupled dark solitons are discussed. Theoretical approximations based on variational formulations are derived. It is found that the presence of a magnetic trap can destabilize the fluxon analogues. However, stabilization is possible by controlling the effective linear coupling between the condensates.
Keywords
Cite
@article{arxiv.1105.4030,
title = {Fluxon analogues and dark solitons in linearly coupled Bose-Einstein condensates},
author = {Muhammad I. Qadir and Hadi Susanto and Paul C. Matthews},
journal= {arXiv preprint arXiv:1105.4030},
year = {2015}
}
Comments
14 pages, 7 figures, The paper is to appear in Journal of Physics B