NONLINEAR WAKE IN THE RANDOM-PHASE-APPROXIMATION

被引：8

作者：

BERGARA, A ^{[1
]}

PITARKE, JM ^{[1
]}

机构：

[1] EUSKAL HERRIKO UNIBERTSITATEA,ZIENTZI FAK,MAT KONDENTSATUAREN FIS SAILA,E-48080 BILBAO,SPAIN

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1995年 / 96卷 / 3-4期

关键词：

D O I：

10.1016/0168-583X(95)00254-5

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We have formulated a diagrammatic analysis to study the many-body interactions between a moving ion passing through a solid, modeling the solid by an electron gas embedded in a uniformly distributed positive background. Using Feynman diagrams, a derivation of the first correction (proportional to Z(1)(2), Z(1) being the ion charge) to the induced potential and electron density is presented. These magnitudes are evaluated numerically using the full random-phase-approximation to describe the shielded interaction.

引用

页码：604 / 609

页数：6

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