DENSITY OF STATES FOR ONE HOLE IN A HALF FILLED INFINITE U 2-DIMENSIONAL HUBBARD-MODEL

被引：5

作者：

MESHKOV, SV ^{[1
]}

BERKOV, DV ^{[1
]}

机构：

[1] CHEM PHYS INST,CHERNOGOLOVKA 142432,USSR

来源：

PHYSICS LETTERS A | 1992年 / 170卷 / 06期

关键词：

D O I：

10.1016/0375-9601(92)90750-G

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate this problem by two methods. In the first one the density of states is determined from its moment expansion. In the second approach an imaginary time Green function obtained by a special world line Monte Carlo algorithm is analytically continued to the real frequency axis.

引用

页码：448 / 453

页数：6

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