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Title
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Density functional for the ground-state energy of artificial two-electron atoms with harmonic confinement
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Author
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Abstract
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| An exact analytical expression for the ground-state energy density functional for artificial two-electron atoms, in harmonic confinement, and with an inverse square law interaction u(r12) = ë/r212 between the electrons, is derived. This is the first time when the ground-state energy is exactly exhibited as a functional of the density in the case of interacting fermions. To achieve this, a generalization for the given interparticle interaction of the 'noninteracting' virial theorem is also shown to be valid. |
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Language
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English
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Source (journal)
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Journal of physics: B : atomic and molecular physics / Physical Society; Institute of Physics [London] - London, 1969 - 1987
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Publication
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London
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2009
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ISSN
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0022-3700
[print]
1747-3721
[online]
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DOI
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10.1088/0953-4075/42/2/025001
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Volume/pages
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42
:2
(2009)
, p. 025001,1-025001,4
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ISI
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000262374800005
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Full text (Publisher's DOI)
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