Self-consistent linear response approximation for quantum many-body systems

被引：21
|
作者：
Toyoda, T [1 ]
机构：
[1] Tokai Univ, Dept Phys, Hiratsuka, Kanagawa 25912, Japan
来源：
PHYSICA A | 1998年 / 253卷 / 1-4期
关键词：
D O I：
10.1016/S0378-4371(98)00040-5
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The self-consistent linear response approximation (SCLRA) previously proposed to derive the dispersion of the transverse plasmon in a two-dimensional electron gas [Physica A 127 (1984) 529] is extended to general two-body interactions including the Coulomb interaction. The validity of the conventional ring-diagram approximation is clarified within the framework of the SCLRA. (C) 1998 Elsevier Science B.V. All rights reserved.
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页码：498 / 506
页数：9
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