Two component interacting bosons: 1-d exact results
强关联电子
2015-06-24 v1
摘要
Motivated by the experiment of two-component Bose-Einstein condensates produced in magnetically trapped , we study one dimensional Boson systems with repulsive -function interaction in the presence of SU(2) intrinsic degree of freedom by means of coordinate Bethe ansatz. The ground state and low-lying excitations are solved by both numerical and analytical methods. It is shown that the ground state is an isospin-ferromagnetic state and the excitations are composed of three elementary particles: holons, antiholons and isospinons. The isospinon is a triplet coupled to the ``ferromagnetic'' background antiparallelly.
引用
@article{arxiv.cond-mat/0107578,
title = {Two component interacting bosons: 1-d exact results},
author = {You-Quan Li and Shi-Jian Gu and Zu-Jian Ying and Ulrich Eckern},
journal= {arXiv preprint arXiv:cond-mat/0107578},
year = {2015}
}
备注
Revtex 4 pages, 3 figures