Pseudospin Wave State in One-Dimensional Half-Filled Hubbard Model
Pseudospin Wave State in One-Dimensional Half-Filled Hubbard Model
复制标题
一维半填充哈伯德模型中的赝自旋波态
DOI：
10.1088/0253-6102/16/4/485
复制
发表时间：
1991
期刊：
影响因子：
--
通讯作者：
Hong Shen
中科院分区：
文献类型：
--
作者：
Z. Song;Hong Shen
本文用一种简单的方法（是格点数目）得到了一维半满Hubbard模型的所有带自旋的本征函数。这些本征函数依赖于，和动量。结果表明，我们得到的本征态可以用波矢描述各种赝自旋波，并且这些赝自旋波态都伴随着电荷转移。这与小中心环的精确对角化结果一致。
All the eigenfunctions with spin of one-dimensional half-filled Hubbard model are obtained by using a simple method ( is the number of the sites). These eigenfunctions depend on , and the momentum . It is shown that the eigenstates we obtained can describe varioue kinds of pseudospin waves with wave vector and these pseudospin wave states are accompanied with a charge transferring. This is in agreement with the exact diagonalization results for small sites ring.