Results 41 to 50 of about 393,647 (311)

GRAPHEN-PHENYL-NH2 AS NANOCARRIER: A DENSITY FUNCTIONAL THEORY STUDY

open access: yesQuímica Nova, 2022
Recently, graphene and modified graphene as one of the most suitable and the most important carbon nanomaterials have been introduced for drug delivery.
Nosrat Madadi Mahani   +2 more
doaj   +1 more source

Density Functional Theory and the Kohn–Sham Equation

open access: yes, 2010
The basic formulas of density functional theory (DFT) are derived, together with a discussion about the form and accuracy of different approximations to the energy functional used in DFT.
Mebarek Alouani   +11 more
core   +1 more source

Accurate finite element method for atomic calculations based on density functional theory and Hartree-Fock method [PDF]

open access: yes, 2011
An accurate finite element method is developed for atomic calculations based on density functional theory (DFT) within local density approximation (LDA) and Hartree-Fock (HF) method.
Masayuki Toyoda   +3 more
core   +1 more source

Pair density functional theory — a generalized density functional theory [PDF]

open access: yesPhysics Letters A, 1994
Abstract The idea of a pair density functional theory for fermions is presented. Whereas in the conventional Hohenberg-Kohn-Sham theory for the ground state of an interacting N-particle system the particle density is the key quantity and the sum of the kinetic and the interaction energy is a universal functional of this density, here the pair ...
openaire   +1 more source

Nuclear fission in covariant density functional theory

open access: yesEPJ Web of Conferences, 2013
The current status of the application of covariant density functional theory to microscopic description of nuclear fission with main emphasis on superheavy nuclei (SHN) is reviewed.
Afanasjev A.V., Abusara H., Ring P.
doaj   +1 more source

Orbital-free density functional theory simulation of collective dynamics coupling in liquid Sn [PDF]

open access: yes, 2018
Producción CientíficaThe appearance of a second excitation mode in the longitudinal and transverse collective dynamics of a series of liquid metals has been observed recently, either by inelastic X-ray scattering (IXS) or by first-principles molecular ...
Beatriz G. del Rio   +7 more
core   +1 more source

Linearized Pair-Density Functional Theory

open access: yes, 2023
Multiconfiguration pair-density functional theory (MC-PDFT) is a post-SCF multireference method that has been successful at computing ground- and excited-state energies. However, MC-PDFT is a single-state method in which the final MC-PDFT energies do not
Matthew, Hennefarth   +3 more
core   +1 more source

Antioxidant Properties of Kynurenines: Density Functional Theory Calculations. [PDF]

open access: yesPLoS Computational Biology, 2016
Kynurenines, the main products of tryptophan catabolism, possess both prooxidant and anioxidant effects. Having multiple neuroactive properties, kynurenines are implicated in the development of neurological and cognitive disorders, such as Alzheimer's ...
Aleksandr V Zhuravlev   +3 more
doaj   +1 more source

Density-Driven Correlations in Ensemble Density Functional Theory: Insights from Simple Excitations in Atoms

open access: yes, 2020
Ensemble density functional theory extends the usual Kohn-Sham machinery to quantum state ensembles involving ground- and excited states. Recent work by the authors [Phys. Rev. Lett. 119, 243001 (2017); 123, 016401 (2019)] has shown that both the Hartree-
Gould, T, Pittalis, S
core   +1 more source

Non-Abelian density functional theory [PDF]

open access: yesJournal of Physics A: Mathematical and General, 1998
1 .eps ...
Rosensteel, G., Dankova, Ts.
openaire   +2 more sources

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