Exchange-correlation effects in semiconductor double-quantum-wire systems

Date

1997

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Source Title

Journal of Physics Condensed Matter

Print ISSN

0953-8984

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Institute of Physics Publishing Ltd.

Volume

9

Issue

14

Pages

3033 - 3042

Language

English

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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.

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