Exchange-correlation effects in semiconductor double-quantum-wire systems
Date
1997
Authors
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Instructor
Source Title
Journal of Physics Condensed Matter
Print ISSN
0953-8984
Electronic ISSN
Publisher
Institute of Physics Publishing Ltd.
Volume
9
Issue
14
Pages
3033 - 3042
Language
English
Type
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Abstract
We study the short-range correlations in a double-quantum-wire structure within the self-consistent scheme of Singwi, Tosi, Land, and Sjolander. The local-field factors and static correlation functions are calculated for electron and electron-hole double-wire systems. The ground-state energy and collective excitations are discussed. It is found that the interwire correlations become quite important for electron-hole systems. Comparisons with the random-phase approximation and Hubbard approximation are made for various calculated quantities.