Title
Accuracy of the Hartree-Fock method for Wigner molecules at high magnetic fields Accuracy of the Hartree-Fock method for Wigner molecules at high magnetic fields
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Berlin ,
Subject
Physics
Source (journal)
European physical journal : D : atomic, molecular and optical physics. - Berlin
Volume/pages
28(2004) :3 , p. 373-380
ISSN
1434-6060
ISI
000220378400008
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Few-electron systems confined in two-dimensional parabolic quantum dots at high magnetic fields are studied by the Hartree-Fock (HF) and exact diagoiialization methods. A generalized multicenter Gaussian basis is proposed in the HF method. A comparison of the HF and exact, results allows as to discuss the relevance of the symmetry of the charge density distribution for the accuracy of the HF method. It is shown that the energy estimates obtained with the broken-symmetry HF wave functions become exact in the infinite magnetic-field limit. In this limit the charge density of the broken-symmetry solution call be identified with the classical charge distribution.
E-info
https://repository.uantwerpen.be/docman/iruaauth/febd54/5e75854.pdf
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