Pair densities at contact in the quantum electron gas

被引：7

作者：

Asgari, R

Polini, M

Davoudi, B

Tosi, MP

机构：

[1] INFM, NEST, I-56126 Pisa, Italy

[2] Scuola Normale Super Pisa, Classe Sci, I-56126 Pisa, Italy

[3] Inst Studies Theoret Phys & Math, Tehran, Iran

来源：

SOLID STATE COMMUNICATIONS | 2003年 / 125卷 / 3-4期

关键词：

electron-electron interactions; SHORT-RANGE CORRELATION; STATIC RESPONSE;

D O I：

10.1016/S0038-1098(02)00782-2

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The value of the pair distribution function g(r) at contact (r = 0) in a quantum electron gas is determined by the scattering events between pairs of electrons with antiparallel spins. The theoretical results for g(0) as a function of the coupling strength r. in the paramagnetic electron gas in dimensionality D = 2 and 3, that have been obtained from the solution of the two-body scattering problem with a variety of effective scattering potentials embodying many-body effects, are compared with the results of many-body calculations in the ladder approximation and with quantum Monte Carlo data. (C) 2003 Published by Elsevier Science Ltd.

引用

收藏

页码：139 / 142

页数：4

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