Controllable Persistent Atom Current of Bose-Einstein Condensates in an Optical Lattice Ring
Other Condensed Matter
2015-06-25 v1
Abstract
In this paper the macroscopic quantum states of Bose-Einstein condensates in optical lattices is studied by solving the periodic Gross-Pitaevskii equation in one-dimensional geometry. It is shown that an exact solution seen to be a travelling wave of excited macroscopic quantum states resultes in a persistent atom current which can be controlled by adjusting of the barrier height of the optical periodic potential. A critical condition to generate the travelling wave is demonstrated and we moreover propose a practical experiment to realize the persistent atom current in a toroidal atom waveguide.
Cite
@article{arxiv.cond-mat/0506115,
title = {Controllable Persistent Atom Current of Bose-Einstein Condensates in an Optical Lattice Ring},
author = {G. -P. Zheng and J. -Q. Liang},
journal= {arXiv preprint arXiv:cond-mat/0506115},
year = {2015}
}
Comments
9 pages, 1 figures