Methods to generate the reference total and Pauli kinetic potentials

Abstract

We have derived a new method which allows to compute the full and the Pauli reference kinetic potentials for atoms and molecules in a real space representation. This is done by applying the optimized effective potential (OEP) method to {the} Kohn-Sham non-interacting kinetic energy expression. Additionally, we have also derived a simplified OEP variant based on the common energy denominator approximation which has proven to give much more stable and robust results than the original OEP one. Moreover, we have also proved that at the solution point our approach is formally equivalent to the commonly used Bartolotti-Acharya formula.

14 pages, 4 figures

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Cited by in corpus (3)

• Improving the applicability of the Pauli kinetic energy density based semilocal functional for solids
• Nonlocal Orbital-Free Kinetic Energy Functional from the Jellium-with-Gap Model for Finite Systems
• On the Geometric Potential and the Relationship between the Exact Electron Factorization and Density Functional Theory