1980
DOI: 10.1063/1.440249
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Consequences of extending 1-matrix energy functionals from pure–state representable to all ensemble representable 1 matrices

Abstract: Erratum: "Explicit pure-state density operator structure for quantum tomography" [

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Cited by 230 publications
(130 citation statements)
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“…The exchange-correlation functional collects the errors made in the approximations of the kinetic energy and of the interactions between electrons by respectively the first and third terms of the Kohn-Sham functional. It follows from the Hohenberg-Kohn theorem [20,26,28,33], that there exists an exact exchange-correlation functional, that is a functional of the electronic density ρ for which solving (1.4) provides the ground state electronic energy and density of the N -body electronic Schrödinger equation. Unfortunately, no mathematical expression of the exchange-correlation functional amenable to numerical simulations is known.…”
Section: Rapide Notementioning
confidence: 99%
“…The exchange-correlation functional collects the errors made in the approximations of the kinetic energy and of the interactions between electrons by respectively the first and third terms of the Kohn-Sham functional. It follows from the Hohenberg-Kohn theorem [20,26,28,33], that there exists an exact exchange-correlation functional, that is a functional of the electronic density ρ for which solving (1.4) provides the ground state electronic energy and density of the N -body electronic Schrödinger equation. Unfortunately, no mathematical expression of the exchange-correlation functional amenable to numerical simulations is known.…”
Section: Rapide Notementioning
confidence: 99%
“…Third, the typical situation is that there are many wavefuctions and many electron densities that are consistent with a particular q. To define a unique energy from among the possible choices, we adhere to constrained search density functional theory (CS-DFT) 41,53 rather than appealing to a maximum entropy principle.…”
Section: 1933mentioning
confidence: 99%
“…Rigorously speaking, it should be optimal in the sense of Levy CS-DFT. 41,53 The constraint is that Γ * A should yield the lowest energy for all other ensemble density matrices which integrate to ρ * A :…”
Section: Definition Of Pseudo-atom Energiesmentioning
confidence: 99%
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“…Blöchl et al [9] have proposed such a hybrid approach with the help of reduced density-matrix functional theory (RDMFT, [10][11][12][13]). RDMFT uses the one-particle reduced density matrix (1-RDM) as a natural variable and thus emphasizes orbital occupations.…”
Section: Introductionmentioning
confidence: 99%