Correlation effects in a one-dimensional electron gas with short-range interaction
Date
1999
Authors
Advisor
Instructor
Source Title
Solid State Communications
Print ISSN
0038-1098
Electronic ISSN
Publisher
Pergamon Press
Volume
110
Issue
1
Pages
51 - 56
Language
English
Type
Article
Journal Title
Journal ISSN
Volume Title
Abstract
We study the correlation effects in a one-dimensional electron gas with repulsive delta-function interaction. The correlation effects are described by a local-field correction which takes into account the short-range correlations. We find that the ground state energy is in good agreement with the exact result up to intermediate coupling strengths, showing an improvement over the STLS approximation. The compressibility, the static structure factor and the pair-correlation function are also calculated within the present approximation.
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Keywords
Approximation theory, Compressibility of gases, Electronic structure, Ground state, Nanostructured materials, Thermodynamic properties, Singwi-Tosi-Land-Sjolander (STLS) approximation, Electron gas