Short-range correlations in coupled quantum-wire systems
Date
2002Source Title
Turkish Journal of Physics
Print ISSN
1300-0101
Publisher
TÜBİTAK
Volume
26
Issue
3
Pages
237 - 242
Language
English
Type
ArticleItem Usage Stats
137
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Abstract
We study the contact values of the inter-wire pair-correlation function in electron-electron and electron-hole double-wire systems. For this purpose the ladder approximation as generalized to multicomponent systems is used. The ladder approximation yields positive values for the inter-wire gee(0) and geh(0) for all values of the density parameter rs and distance d between the wires. This allows us to infer possible instabilities in the system more reliably compared to other approaches. We also investigate the effects of quantum-wire width and screening on the inter-wire pair-correlation functions.
Keywords
Approximation theoryCarrier concentration
Charge carriers
Correlation methods
Electrons
Coupled quantum wire systems
Ladder approximation
Semiconductor quantum wires