MULTIPAIR EXCITATIONS IN AN ELECTRON LIQUID

Authors
BACHLECHNER ME HOLAS A BOHM HM SCHINNER A
Citation
Me. Bachlechner et al., MULTIPAIR EXCITATIONS IN AN ELECTRON LIQUID, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 115(1-4), 1996, pp. 23-26
Citations number
20
Categorie Soggetti
Physics, Nuclear","Nuclear Sciences & Tecnology","Instument & Instrumentation
Journal title
Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms → ACNP
ISSN journal
0168583X
Volume
115
Issue
1-4
Year of publication
1996
Pages
23 - 26
Database
ISI
SICI code
0168-583X(1996)115:1-4<23:MEIAEL>2.0.ZU;2-A
Abstract
Single (particle-hole)-pair excitations, as described in the well-know n Lindhard function, are restricted to a strip in the (q, omega) plane - the so-called particle-hole continuum. We present a perturbational analysis of the dynamic dielectric function allowing a generalization of this property for n-pair contributions. Consequences for the electr on energy-loss function and related quantities are discussed.