Moving obstacle potential in a spin-orbit-coupled Bose-Einstein condensate
Quantum Gases
2017-10-11 v1
Abstract
We investigate the dynamics around an obstacle potential moving in the plane-wave state of a pseudospin- Bose-Einstein condensate with Rashba spin-orbit coupling. We numerically investigate the dynamics of the system and find that it depends not only on the velocity of the obstacle but also significantly on the direction of obstacle motion, which are verified by a Bogoliubov analysis. The excitation diagram with respect to the velocity and direction is obtained. The dependence of the critical velocity on the strength of the spin-orbit coupling and the size of the obstacle is also investigated.
Cite
@article{arxiv.1707.09136,
title = {Moving obstacle potential in a spin-orbit-coupled Bose-Einstein condensate},
author = {Masaya Kato and Xiao-Fei Zhang and Hiroki Saito},
journal= {arXiv preprint arXiv:1707.09136},
year = {2017}
}
Comments
8 pages, 8 figures, 9 movies