English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/6074
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:


Brueckner-Hartree-Fock study of circular quantum dots

AuthorsEmperador, Agustí; Lipparini, Enrico; Serra, Llorenç
KeywordsHF calculations
Ground states
Quantum dots
Density functional theory
Issue Date22-Jun-2006
PublisherAmerican Physical Society
CitationPhysical Review B 73, 235341 (2006)
AbstractWe calculate ground state energies in the Brueckner-Hartree-Fock theory for $N$ electrons (with $N\le 20$) confined to a circular quantum dot and in presence of a static magnetic field. Comparison with the predictions of Hartree-Fock, local-spin-density and exact configuration-interaction theories is made. We find that the short-range correlations taken into account in Brueckner-Hartree-Fock calculations give an important contribution to the ground state energies, specially in strongly confined dots. In this high-density range, corresponding in practice to self-assembled quantum dots, the results of Brueckner-Hartree-Fock calculations converge to the exact values and are better than those obtained in the local-spin-density approximation.
Description6 pages.-- PACS numbers: 73.21.La, 71.10.-w.-- Final full-text version of the paper available at: http://dx.doi.org/10.1103/PhysRevB.73.235341.
Appears in Collections:(IFISC) Artículos
Files in This Item:
File Description SizeFormat 
PhysRevB_73_235341.pdf397,56 kBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.