A NEW APPROACH TO THE CALCULATION OF SPECTRA FOR STRONGLY CORRELATED SYSTEMS

被引：27
|
作者：
COSTI, TA
HEWSON, AC
机构：
[1] Department of Mathematics, Imperial College, London
来源：
PHYSICA B | 1990年 / 163卷 / 1-3期
关键词：
D O I：
10.1016/0921-4526(90)90161-M
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The possibility of extending finite cluster calculations by setting up an intercluster Hamiltonian, in terms of Hubbard X-operators, and then using renormalization group or generalized mean field approximations is explored. The feasibility of this approach is tested by applying it to the calculation of the one particle Green's function and dynamic susceptibility for the non-degenerate impurity Anderson model. © 1990.
引用
收藏
页码：179 / 181
页数：3
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