Functional derivative of the kinetic energy functional for spherically symmetric systems |
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Authors: | Nagy Á |
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Affiliation: | Department of Theoretical Physics, University of Debrecen, H-4010 Debrecen, Hungary. anagy@madget.atomki.hu |
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Abstract: | Ensemble non-interacting kinetic energy functional is constructed for spherically symmetric systems. The differential virial theorem is derived for the ensemble. A first-order differential equation for the functional derivative of the ensemble non-interacting kinetic energy functional and the ensemble Pauli potential is presented. This equation can be solved and a special case of the solution provides the original non-interacting kinetic energy of the density functional theory. |
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