The Journal of Chemical Physics

Fisher information in density functional theory

Ágnes Nagy

Published Oct 31, 2003• 118 citations

Abstract

The Euler equation of the density functional theory is derived from the principle of minimum Fisher information. Both time-independent and time-dependent cases are analyzed. It is shown that Fisher information is a measure of the quality of the approximate density.

DOI: 10.1063/1.1615765

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