THE SYMMETRY OF THE MOMENTUM DISTRIBUTION-FUNCTIONS IN THE HUBBARD-MODEL AT HALF-FILLING

被引：1
|
作者：
TIAN, GS
机构：
[1] Department of Physics, Peking University
来源：
SOLID STATE COMMUNICATIONS | 1994年 / 92卷 / 03期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1016/0038-1098(94)90891-5
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
In this article, by exploiting the unitary partial particle-hole transformations between the positive-U and negative-U Hubbard models at half-filling, we shall rigorously show that the momentum distribution functions of these models possess some symmetry, which was originally realized only for the ideal tight-binding electron models on a d-dimensional simple cubic lattice.
引用
收藏
页码：277 / 280
页数：4
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