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About the compatibi...
About the compatibility between ansatzes and constraints for a local formulation of orbital-free density functional theory
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- Finzel, Kati (author)
- Linköpings universitet,Teoretisk Fysik,Tekniska fakulteten
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(creator_code:org_t)
- 2016-11-17
- 2017
- English.
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In: International Journal of Quantum Chemistry. - : WILEY-BLACKWELL. - 0020-7608 .- 1097-461X. ; 117:5
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Functional properties that are exact for the Hohenberg-Kohn functional may turn into mutually exclusive constraints at a given level of ansatz. This is exemplarily shown for the local density approximation. Nevertheless, it is possible to reach exactly the Kohn-Sham data from an orbital-free density functional framework based on simple one-point functionals by starting from the Levy-Perdew-Sahni formulation. The energy value is obtained from the density-potential pair, and therefore does not refer to the functional dependence of the potential expression. Consequently, the potential expression can be obtained from any suitable model and is not required to follow proper scaling behavior.
Subject headings
- NATURVETENSKAP -- Kemi -- Teoretisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Theoretical Chemistry (hsv//eng)
Keyword
- orbital-free density functional theory; one-point functionals; local density approximation; Pauli potential; non-analytical functional
Publication and Content Type
- ref (subject category)
- art (subject category)
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