Unconstrained Variational Determination of the Kohn-Sham Potential

2006/03/10 by Gidopoulos, N. I.
#FOS: Physical sciences #Other Condensed Matter (cond-mat.other)

paper · doi:10.48550/arxiv.cond-mat/0603277

Abstract

Density Functional Theory's Kohn-Sham (KS) potential emerges as the minimizing effective potential in an unconstrained variational scheme that does not involve fixing the unknown single-electron density. The physical content behind the virtual KS system, that of a non-interacting electronic system representing optimally the interacting one, is brought to light.

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