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Non-Born–Oppenheimer electron, nuclear and nuclear–electron second-order density matrices for exactly solvable four-particle model system
ArticleAbstract: Properties of the non-Born–Oppenheimer two-matrix are examined for four-particle systems of the CoulPalabras claves:density functional theory, Few body systems, Reduced density matrix, Two-matrixAutores:Dick Zambrano Salinas, Eduardo V. Ludeña, Mauricio Heriberto Cornejo, P. Iza, Peter IzaFuentes:googlescopusStudy of some simple approximations to the non-interacting kinetic energy functional
ArticleAbstract: Within the framework of density functional theory, a study of approximations to the enhancement factPalabras claves:density functional theory, Enhancement factor, Kinetic energy functional, Kohn–Sham formalismAutores:Edison Salazar, Eduardo V. Ludeña, Karasiev V.V., Mauricio Heriberto Cornejo, Pedro F. GuarderasFuentes:scopus