Semiclassical origins of density functionals |
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Authors: | Elliott Peter Lee Donghyung Cangi Attila Burke Kieron |
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Institution: | Department of Chemistry, University of California, Irvine, California 92697, USA. |
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Abstract: | The relation between semiclassical and density-functional approximations is clarified. Semiclassical approximations both explain and improve upon density-gradient expansions for finite systems. We derive highly accurate density and kinetic energy functionals of the potential in one dimension. |
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