Publication
Title
Comment on "Kinetic energy as a density functional"
Author
Abstract
In a recent paper, Nesbet [Phys. Rev. A 65, 010502(R) (2001)] has proposed dropping "the widespread but unjustified assumption that the existence of a ground-state density functional for the kinetic energy, T-s[rho], of an N-electron system implies the existence of a density-functional derivative, deltaT(s)[rho]/deltarho(r), equivalent to a local potential function," because, according to his arguments, this derivative "has the mathematical character of a linear operator that acts on orbital wave functions." Our Comment demonstrates that the statement called by Nesbet an "unjustified assumption" happens, in fact, to be a rigorously proven theorem. Therefore, his previous conclusions stemming from his different view of this derivative, which undermined the foundations of density-functional theory, can be discounted.
Language
English
Source (journal)
Physical review : A : atomic, molecular and optical physics. - Lancaster, Pa, 1990 - 2015
Publication
Lancaster, Pa : 2002
ISSN
1094-1622 [online]
1050-2947 [print]
Volume/pages
66:6(2002), 3 p.
Article Reference
066501
ISI
000180656800126
Medium
E-only publicatie
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 12.07.2012
Last edited 04.07.2017
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