Spin-dependent inelastic collisions in spin-2 Bose-Einstein condensates
Abstract
We studied spin-dependent two-body inelastic collisions in F=2 87Rb Bose-Einstein condensates both experimentally and theoretically. The 87Rb condensates were confined in an optical trap and selectively prepared in various spin states in the F=2 manifold at a magnetic field of 3.0 G. Measured atom loss rates are found to depend on spin states of colliding atoms. We measured two fundamental loss coefficients for two-body inelastic collisions with the total spin of 0 and 2; the coefficients determine loss rates for all the spin pairs. The experimental results for mixtures of all the spin combinations are in good agreement with numerical solutions of the Gross-Pitaevskii equations that include the effect of a magnetic field gradient.
Cite
@article{arxiv.0909.0489,
title = {Spin-dependent inelastic collisions in spin-2 Bose-Einstein condensates},
author = {Satoshi Tojo and Taro Hayashi and Tatsuyoshi Tanabe and Takuya Hirano and Yuki Kawaguchi and Hiroki Saito and Masahito Ueda},
journal= {arXiv preprint arXiv:0909.0489},
year = {2009}
}
Comments
7 pages, 5 figures