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- W3100354501 abstract "An extended electron model fully recovers many of the experimental results of quantum mechanics while it avoids many of the pitfalls and remains generally free of paradoxes. The formulation of the many-body electronic problem here resembles the Kohn-Sham formulation of standard density functional theory. However, rather than referring electronic properties to a large set of single electron orbitals, the extended electron model uses only mass density and field components, leading to a substantial increase in computational efficiency. To date, the Hohenberg-Kohn theorems have not been proved for a model of this type, nor has a universal energy functional been presented. In this paper, we address these problems and show that the Hohenberg-Kohn theorems do also hold for a density model of this type. We then present a proof-of-concept practical implementation of this method and show that it reproduces the accuracy of more widely used methods on a test-set of small atomic systems, thus paving the way for the development of fast, efficient and accurate codes on this basis." @default.
- W3100354501 created "2020-11-23" @default.
- W3100354501 creator A5012228556 @default.
- W3100354501 creator A5033602561 @default.
- W3100354501 date "2018-11-23" @default.
- W3100354501 modified "2023-10-12" @default.
- W3100354501 title "A two-density approach to the general many-body problem and a proof of principle for small atoms and molecules" @default.
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- W3100354501 doi "https://doi.org/10.1007/s11467-018-0872-1" @default.
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