Dynamics of dark solitons in elongated Bose-Einstein condensates
Statistical Mechanics
2009-11-07 v1
Abstract
We find two types of moving dark soliton textures in elongated Bose-Einstein condensates: non-stationary kinks and proper dark solitons. The former have a curved notch region and rapidly decay by emitting phonons and/or proper dark solitons. The proper moving solitons are characterized by a flat notch region and we obtain the diagram of their dynamical stability. At finite temperatures the dynamically stable solitons decay due to the thermodynamic instability. We develop a theory of their dissipative dynamics and explain experimental data.
Keywords
Cite
@article{arxiv.cond-mat/0111506,
title = {Dynamics of dark solitons in elongated Bose-Einstein condensates},
author = {A. E. Muryshev and G. V. Shlyapnikov and W. Ertmer and K. Sengstock and M. Lewenstein},
journal= {arXiv preprint arXiv:cond-mat/0111506},
year = {2009}
}
Comments
~ 5 pages, 1 figure