Results 31 to 40 of about 1,338,720 (179)

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

Investigation of structure and vibrational properties of cyclobutane pirimidine dimer [PDF]

open access: yesHemijska Industrija, 2013
We performed a theoretical analysis of the structure and vibrational properties of cyclobutane pyrimidine dimer, which is the main product in a photochemical reaction involving two molecules of 1-methylthymine.
Petković Milena M.   +2 more
doaj   +1 more source

Scaled Density Functional Theory Correlation Functionals [PDF]

open access: yesThe Journal of Physical Chemistry A, 2007
We show that a simple one-parameter scaling of the dynamical correlation energy estimated by the density functional theory (DFT) correlation functionals helps increase the overall accuracy for several local and nonlocal functionals. The approach taken here has been described as the "scaled dynamical correlation" (SDC) method [Ramachandran, J.
Mohammed M, Ghouri   +2 more
openaire   +2 more sources

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

Recent Progress in Lattice Density Functional Theory

open access: yesComputation, 2019
Recent developments in the density-functional theory of electron correlations in many-body lattice models are reviewed. The theoretical framework of lattice density-functional theory (LDFT) is briefly recalled, giving emphasis to its universality and to ...
T. S. Müller, W. Töws, G. M. Pastor
doaj   +1 more source

A density functional theory for ecology across scales

open access: yesNature Communications, 2023
Modelling diverse ecological phenomena across scales with a single mathematical framework is challenging. Here, the authors draw on density functional theory to develop a framework that bridges between mechanistic theories at fine scales and statistical ...
Martin-I. Trappe, Ryan A. Chisholm
doaj   +1 more source

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

Dynamical density functional theory for circle swimmers

open access: yesNew Journal of Physics, 2017
The majority of studies on self-propelled particles and microswimmers concentrates on objects that do not feature a deterministic bending of their trajectory.
Christian Hoell   +2 more
doaj   +1 more source

Local-spin-density functional for multideterminant density functional theory

open access: yes, 2006
Based on exact limits and quantum Monte Carlo simulations, we obtain, at any density and spin polarization, an accurate estimate for the energy of a modified homogeneous electron gas where electrons repel each other only with a long-range coulombic tail.
A. Savin   +9 more
core   +1 more source

Computational complexity of time-dependent density functional theory

open access: yesNew Journal of Physics, 2014
Time-dependent density functional theory (TDDFT) is rapidly emerging as a premier method for solving dynamical many-body problems in physics and chemistry. The mathematical foundations of TDDFT are established through the formal existence of a fictitious
J D Whitfield   +4 more
doaj   +1 more source

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