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26 April 2024 |
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Article overview
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Fast approximation for the energy and density of electrons in two dimensions | E. Rasanen
; G. Bekcioglu
; S. Pittalis
; | Date: |
28 Nov 2011 | Abstract: | We derive a self-consistent variant of the energy functional presented in S.
Pittalis and E. Rasanen, Phys. Rev. B 80, 165112 (2009). The resulting scheme
is an explicit orbital-free representation of the electron density and energy
in terms of the external potential, the number of electrons, and the chemical
potential determined upon normalization. The method yields reasonable results
for two-dimensional quantum dots, rings, and slabs with a practically
negligible computational cost. Both the benefits and drawbacks of the approach
are analyzed. | Source: | arXiv, 1111.6470 | Services: | Forum | Review | PDF | Favorites |
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