Bound states near a moving charge in a quantum plasma

被引：8

作者：

Else, D. ^{[1
]}

Kompaneets, R. ^{[1
]}

Vladimirov, S. V. ^{[1
,2
]}

机构：

[1] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia

[2] Russian Acad Sci, Joint Inst High Temp, Moscow 127412, Russia

来源：

EPL | 2011年 / 94卷 / 03期

基金：

澳大利亚研究理事会;

关键词：

RANDOM-PHASE-APPROXIMATION; WAKE-BINDING-ENERGIES; ELECTRON-STATES; SOLIDS; IONS; DISPERSION; PHYSICS;

D O I：

10.1209/0295-5075/94/35001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It is investigated how the shielding of a moving point charge in a one-component fully degenerate fermion plasma affects the bound states near the charge at velocities smaller than the Fermi one. The shielding is accounted for by using the Lindhard dielectric function, and the resulting potential is substituted into the Schr odinger equation in order to obtain the energy levels. Their number and values are shown to be primarily determined by the value of the charge and the quantum plasma coupling parameter, while the main effect of the motion is to split certain energy levels. This provides a link between quantum plasma theory and possible measurements of spectra of ions passing through solids. Copyright (C) EPLA, 2011

引用

页数：5

共 37 条

[1] Linear and nonlinear ion-acoustic waves in an unmagnetized electron-positron-ion quantum plasma [J].