Dark soliton in quasi-one-dimensional Bose-Einstein condensates with a Gaussian trap
Quantum Gases
2013-11-12 v1 Pattern Formation and Solitons
Quantum Physics
Abstract
In this paper we study dark solitons in quasi-one-dimensional Bose-Einstein condensates (BECs) in presence of an anharmonic external potential. The theoretical model is based on the Mu\~noz-Mateo and Delgado (MMD) equation that describes cigar-shaped BECs with repulsive interatomic interactions. Since MMD equation presents a nonpolynomial form, the soliton-sound recombination cannot display the same pattern presented in the cubic model. We perform numerical simulations to compare both cases.
Keywords
Cite
@article{arxiv.1311.2087,
title = {Dark soliton in quasi-one-dimensional Bose-Einstein condensates with a Gaussian trap},
author = {H. L. C. Couto and W. B. Cardoso},
journal= {arXiv preprint arXiv:1311.2087},
year = {2013}
}
Comments
7 pages, 5 figures