wave 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

• Decomposition of spectrum (functional analysis) — In mathematics, especially functional analysis, the spectrum of an operator generalizes the notion of eigenvalues. Given an operator, it is sometimes useful to break up the spectrum into various parts. This article discusses a few examples of… …   Wikipedia

• Delta wave — For other uses, see Wolff Parkinson White syndrome. Delta waves, an EEG (electroencephalograph) one second sample A delta wave is a high amplitude brain wave with a frequency of oscillation between 0–4 hertz. Delta waves, like other brain waves,… …   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

• Schrödinger functional — Some approaches to quantum field theory are more popular than others. For historical reasons the Schrödinger representation is less favoured than Fock space methods. In the early days of quantum field theory maintaining symmetries such as Lorentz …   Wikipedia

• Event-related functional magnetic resonance imaging — (efMRI) is a form of functional Magnetic Resonance Imaging (fMRI) in which a series of fMRI images are time locked to a stimulus presentation and averaged together. The relationship of the technique to fMRI is analogous to the relationship… …   Wikipedia

• Wheeler–deWitt equation — In theoretical physics, the Wheeler DeWitt equation [DeWitt, B.S., “Quantum Theory of Gravity. I. The Canonical Theory”, Phys. Rev., 160, 1113 1148, (1967).] is a functional differential equation. It is ill defined in the general case, but very… …   Wikipedia

• Hartle-Hawking state — In theoretical physics, the Hartle Hawking state, named after James Hartle and Stephen Hawking, is the wave function of the Universe – a notion meant to figure out how the Universe started – that is calculated from Feynman s path integral.More… …   Wikipedia

• Hartle–Hawking state — The Hartle Hawking state is a proposal concerning the state of the universe prior to the Planck epoch. Hartle Hawking is essentially a no boundary proposal that the universe is infinitely finite: that there was no time before the Big Bang because …   Wikipedia

• Ensemble Interpretation — The Ensemble Interpretation, or Statistical Interpretation of quantum mechanics, is an interpretation that can be viewed as a minimalist interpretation; it is a quantum mechanical interpretation that claims to make the fewest assumptions… …   Wikipedia

• analysis — /euh nal euh sis/, n., pl. analyses / seez /. 1. the separating of any material or abstract entity into its constituent elements (opposed to synthesis). 2. this process as a method of studying the nature of something or of determining its… …   Universalium