Nonlinear quantum hydrodynamical model of the electron gas

Autor:	José María Pitarke, R. H. Ritchie, Aitor Bergara
Rok vydání:	1996
Předmět:	Physics Nuclear and High Energy Physics Nonlinear system Wavelength Electron density Excited state Atomic physics Fermi gas Instrumentation Quantum Excitation Charged particle
Zdroj:	Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 115:70-74
ISSN:	0168-583X
DOI:	10.1016/0168-583x(95)01536-1
Popis:	It is well known that the hydrodynamical model of the electron gas is suitable when the electron density can be considered as the fundamental quantity, small wavelength effects being less important. This is the case when the electron gas is excited by the passage of swift charged particles. In this paper we make use of the quantum hydrodynamical model of the electron gas to derive, within this model, the nonlinear wake potential of fast charged particles passing through matter, the Barkas effect, and double-plasmon excitation probabilities. This is compared with results obtained by following many-body schemes within the random-phase-approximation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::edd83b73540fe7ab3850bef9d342549d https://doi.org/10.1016/0168-583x(95)01536-1 Zobrazit plný text záznamu Full Text from ScienceDirect