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Critical Densities for the RPA Approach in Quasi-One-Dimensional Electronic Systems

✍ Scribed by J.B. Borges; P.C.M. Machado; F.A.P. Osório; A.N. Borges


Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
81 KB
Volume
232
Category
Article
ISSN
0370-1972

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We study the effects of screening on the binding energy of positively and negatively charged impurities in the quasi-one-dimensional electron gas. We assume a parabolic confinement for the electron gas. Many-body effects beyond the random-phase approximation and the valley degeneracy are taken into