- density functional
- функционал плотности
English-russian dictionary of physics. 2013.
density functional
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Density functional theory — Electronic structure methods Tight binding Nearly free electron model Hartree–Fock method Modern valence bond Generalized valence bond Møller–Plesset perturbation theory … Wikipedia
Time-dependent density functional theory — (TDDFT) is a quantum mechanical method used inphysics and chemistry to investigate the proprieties of many body systems beyond the ground statestructure. It s an extension of density functional theory (DFT) to the time dependent domain asa method … Wikipedia
Orbital-free density functional theory — In computational chemistry, orbital free density functional theory is a quantum mechanical approach to electronic structure determination which is based on functionals of the electronic density. It is most closely related to the Thomas–Fermi… … Wikipedia
Amsterdam Density Functional — (ADF) is a program for first principles electronic structure calculations that makes use of density functional theory. [ Computational Chemistry , David Young, Wiley Interscience, 2001. Appendix A. A.2.1 pg 332, ADF ] ADF was first developed in… … Wikipedia
Functional derivative — In mathematics and theoretical physics, the functional derivative is a generalization of the directional derivative. The difference is that the latter differentiates in the direction of a vector, while the former differentiates in the direction… … Wikipedia
Density matrix — Mixed state redirects here. For the psychiatric condition, see Mixed state (psychiatry). In quantum mechanics, a density matrix is a self adjoint (or Hermitian) positive semidefinite matrix (possibly infinite dimensional) of trace one, that… … Wikipedia
Functional electrical stimulation — (commonly abbreviated as FES) is a technique that uses electrical currents to activate nerves innervating extremities affected by paralysis resulting from spinal cord injury (SCI), head injury, stroke or other neurological disorders, restoring… … Wikipedia
Functional response — In ecology, functional response is a term used to describe the relationship between the density of prey in a certain area and the average number of prey consumed by each predator in that area. The concept was introduced by work on small mammals… … Wikipedia
Density-dependent inhibition — In population ecology, density dependent inhibition describes a situation in which population growth is curtailed by crowding, predators and competition. In cell biology, it describes the reduction in cell division. When a cell population reaches … Wikipedia
Local-density approximation — The local density approximation (LDA) is an approximation of the exchange correlation (XC) energy functional in density functional theory (DFT) by taking the XC energy of an electron in a homogeneous electron gas of a density equal to the density … Wikipedia
Hybrid functional — A hybrid functional is an exchange correlation functional used in density functional theory (DFT) that incorporates a portion of exact exchange from Hartree Fock theory with exchange and correlation from other sources ( ab initio , such as LDA,… … Wikipedia
