Boundary bound states for the open Hubbard chain with boundary fields
强关联电子
2009-10-30 v3
摘要
The boundary effects in the open Hubbard chain with boundary fields are studied. The boundary string solutions of the Bethe ansatz equations that give rise to a wave functions localized at the boundary and exponentially decreasing away from the boundary are provided. In particular, it is shown that the correct ground state of the model at half-filling contains the boundary strings.
引用
@article{arxiv.cond-mat/9703001,
title = {Boundary bound states for the open Hubbard chain with boundary fields},
author = {Osamu Tsuchiya and Takashi Yamamoto},
journal= {arXiv preprint arXiv:cond-mat/9703001},
year = {2009}
}
备注
Latex, 9 pages