Accurate Adiabatic Connection Curve Beyond the Physical Interaction Strength

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dc.creatorMagyar, R. J.
dc.creatorTerilla, W.
dc.creatorBurke, K.
dc.date2003-01-09
dc.date.accessioned2026-07-07T06:33:19Z
dc.date.available2026-07-07T06:33:19Z
dc.descriptionThe adiabatic connection curve of density functional theory (DFT) is accurately calculated beyond the physical interaction strength for Hooke's atom, two interacting electrons in a harmonic well potential. Extrapolation of the accurate curve to the infinite coupling limit agrees well with the strictly correlated electron (SCE) hypothesis but the approach to this limit is more complex. The interaction strength interpolation is shown to be a good, but not perfect, fit to the adiabatic curve. Arguments about the locality of functionals and convexity of the adiabatic connection curve are examined in this regime.
dc.description7 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/physics/0301016
dc.identifierhttp://arxiv.org/abs/physics/0301016
dc.identifierThe Journal of Chemical Physics -- July 8, 2003 -- Volume 119, Issue 2, pp. 696-700
dc.identifierdoi:10.1063/1.1579465
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/99155
dc.subjectChemical Physics
dc.subjectAtomic Physics
dc.subjectComputational Physics
dc.titleAccurate Adiabatic Connection Curve Beyond the Physical Interaction Strength
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