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

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

Please use this identifier to cite or link to this item: http://hdl.handle.net/10355/7938

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Title: Exact exchange-correlation potential for a time-dependent two-electron system
Author: D'Amico, Irene; Vignale, Giovanni, 1957-
Date: 1999-03-15
Publisher: American Physical Society
Citation: Phys. Rev. B 59, 7876-7887 (1999)
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
ISSN: 1098-0121

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