CORRELATIONS AND LOCAL-DENSITY APPROXIMATION

被引：16
|
作者：
REINHARD, PG
机构：
[1] Institut für Theoretische Physik, Universität Erlangen
来源：
PHYSICS LETTERS A | 1992年 / 169卷 / 04期
关键词：
D O I：
10.1016/0375-9601(92)90459-Y
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We compute the RPA correlations explicitly for small, closed shell Na clusters up to Na92 and compare it with the correlations described by energy-density functionals in the local-density approximation. We find an excellent agreement of the correlation energies between explicit calculation and local-density approximation. The correlations on the density distribution, or the corresponding form factor, agree fairly well for the gross properties but fail badly for detailed structures at small wavelengths.
引用
收藏
页码：281 / 286
页数：6
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