Results 21 to 30 of about 1,349,139 (282)

Stochastic density functional theory [PDF]

open access: yes, 2018
Linear-scaling implementations of density functional theory (DFT) reach their intended efficiency regime only when applied to systems having a physical size larger than the range of their Kohn-Sham density matrix (DM).
Gibbs JW   +6 more
core   +4 more sources

Solitons in Nuclear Time-Dependent Density Functional Theory

open access: yesFrontiers in Physics, 2020
The soliton existence in sub-atomic many-nucleon systems will be discussed. In many nucleon dynamics represented by the nuclear time-dependent density functional formalism, much attention is paid to energy and mass dependence of the soliton existence. In
Yoritaka Iwata
doaj   +1 more source

Relativistic density functional theory in nuclear physics

open access: yesAAPPS Bulletin, 2021
Over the past decades, the relativistic density functional theory has been greatly developed and widely applied to investigate a variety of nuclear phenomena.
Jie Meng, Pengwei Zhao
doaj   +1 more source

Density Functional Theory -- an introduction [PDF]

open access: yes, 1998
Density Functional Theory (DFT) is one of the most widely used methods for "ab initio" calculations of the structure of atoms, molecules, crystals, surfaces, and their interactions. Unfortunately, the customary introduction to DFT is often considered too
Argaman, Nathan, Makov, Guy
core   +2 more sources

Optimization of constrained density functional theory [PDF]

open access: yes, 2016
Constrained density functional theory (cDFT) is a versatile electronic structure method that enables ground-state calculations to be performed subject to physical constraints. It thereby broadens their applicability and utility.
O'Regan, David D., Teobaldi, Gilberto
core   +3 more sources

Current-density functional theory for bosonic superfluids

open access: yesJournal of Physics Communications, 2023
A finite-temperature current-density functional theory for bosonic superfluids (sf-CDFT) in the thermal equilibrium state is proposed herein. In the sf-CDFT, hydrodynamic physical quantities, such as particle number density, current density, and the ...
Tomoya Aizawa   +2 more
doaj   +1 more source

Repulsively diverging gradient of the density functional in the reduced density matrix functional theory

open access: yesNew Journal of Physics, 2021
The reduced density matrix functional theory (RDMFT) is a remarkable tool for studying properties of ground states of strongly interacting quantum many body systems.
Tomasz Maciążek
doaj   +1 more source

Density-functional fluctuation theory of crowds

open access: yesNature Communications, 2018
Tools from statistical physics can be used to investigate a large variety of fields ranging from economics to biology. Here the authors first adapt density-functional theory to predict the distributions of crowds in new environments and then validate ...
J. Felipe Méndez-Valderrama   +4 more
doaj   +1 more source

Density Functional Theory Insight into Chemical Vapor Infiltration

open access: yesMethane, 2023
Chemical Vapor Infiltration (CVI) has proven remarkably successful in producing strong and lightweight ceramic matrix composite materials. This technology has matured to regular industrial use.
Eric A. Walker   +2 more
doaj   +1 more source

Effective action and density functional theory [PDF]

open access: yes, 2002
The effective action for the charge density and the photon field is proposed as a generalization of the density functional. A simple definition is given for the density functional, as the functional Legendre transform of the generator functional of ...
.R.G. Parr   +41 more
core   +3 more sources

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