CLUSTER APPROXIMATION TO THE ANDERSON AND TO THE HUBBARD-MODEL

被引：4

作者：

ZIEGLER, A

机构：

[1] Institut für theoretische Physik der Universität Frankfurt, W-6000 Frankfurt

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1992年 / 104卷

关键词：

D O I：

10.1016/0304-8853(92)90976-U

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The fermion cluster approximation by Caron and Pratt is applied to the Anderson model as well as to other test cases in order to clarify the conditions for which it is a reasonable approximation. This knowledge is then used to improve the treatment of the Hubbard model in the fermion cluster approximation.

引用

页码：669 / 670

页数：2

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