Spin waves in a Bose-condensed atomic spin chain
软凝聚态物质
2009-11-07 v1
摘要
The spin dynamics of atomic Bose-Einstein condensates confined in a one-dimensional optical lattice is studied. The condensates at each lattice site behave like spin magnets that can interact with each other through both the light-induced dipole-dipole interaction and the static magnetic dipole-dipole interaction. We show how these site-to-site dipolar interactions can distort the ground state spin orientations and lead to the excitation of spin waves. The dispersion relation of the spin waves is studied and possible detection schemes are proposed.
引用
@article{arxiv.cond-mat/0109415,
title = {Spin waves in a Bose-condensed atomic spin chain},
author = {Weiping Zhang and Han Pu and Chris Search and Pierre Meystre},
journal= {arXiv preprint arXiv:cond-mat/0109415},
year = {2009}
}
备注
4 pages, 3 figures, REVTeX4