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    Exact exchange-correlation potential for a time-dependent two-electron system

    D'Amico, Irene
    Vignale, Giovanni, 1957-
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    [PDF] ExactExchangeCorrelationPotential.pdf (292.8Kb)
    Date
    1999
    Format
    Article
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    Abstract
    We obtain a solution of the time-dependent Schrödinger equation for a two-electron system confined to a plane by an isotropic parabolic potential whose curvature is periodically modulated in time. From this solution we compute the “exact” time-dependent exchange correlation potential vxc, which enters the Kohn-Sham equation of time-dependent density functional theory. Our “exact” result provides a benchmark against which various approximate forms for vxc can be compared. Finally, vxc is separated in an adiabatic and a pure dynamical part and it is shown that, for the particular system studied, the dynamical part is negligible.
    URI
    http://hdl.handle.net/10355/7938
    Citation
    Phys. Rev. B 59, 7876-7887 (1999)
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    • Physics and Astronomy publications (MU)

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