An Extended Electron Approach to the General Many-Body Problem.
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 there resembles the Kohn-Sham formulation of standard density function 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 this problem and show that the Hohenberg-Kohn theorems do also hold for a density model of this type thus paving the way for the development of fast, efficient, and accurate codes on this basis.
Publisher URL: http://arxiv.org/abs/1801.06242
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