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Self-consistent assessment of Englert-Schwinger model on atomic properties
arXiv
Authors: Jouko Lehtomäki, Olga Lopez-Acevedo
Year
2017
Paper ID
25080
Status
Preprint
Abstract Read
~2 min
Abstract Words
88
Citations
N/A
Abstract
Our manuscript investigates a self-consistent solution of the statistical atom model proposed by Berthold-Georg Englert and Julian Schwinger (the ES model) and benchmarks it against atomic Kohn-Sham and two orbital-free models of the Thomas-Fermi-Dirac (TFD)-λvW family. Results show that the ES model generally offers the same accuracy as the well-known TFD-frac{1}{5}vW model; however, the ES model corrects the failure in Pauli potential near-nucleus region. We also point to the inability of describing low-Z atoms as the foremost concern in improving the present model.
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- Our manuscript investigates a self-consistent solution of the statistical atom model proposed by Berthold-Georg Englert and Julian Schwinger (the ES model) and benchmarks it...
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