Abstract
In orbital-free density functional theory only a single equation, the so-called Euler equation, has to be solved for any system instead of the Kohn–Sham equations. The Euler equation is a Schrödinger-like equation for the square root of the density. This equation contains an extra potential, the so-called Pauli potential, in addition to the usual Kohn–Sham potential. Equations for the Pauli potential, the relationship of the Pauli potential and Pauli energy are reviewed. A derivation of the Euler equation via density scaling is presented.
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Acknowledgements
This research was supported by the EU-funded Hungarian grant EFOP-3.6.2-16-2017-00005 and the National Research, Development and Innovation Fund of Hungary, financed under 123988 funding scheme.
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Nagy, Á. (2018). Orbital-Free Density Functional Theory: Pauli Potential and Density Scaling. In: Angilella, G., Amovilli, C. (eds) Many-body Approaches at Different Scales. Springer, Cham. https://doi.org/10.1007/978-3-319-72374-7_21
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