momentum density function

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• Distribution function — This article describes the distribution function as used in physics. You may be looking for the related mathematical concepts of cumulative distribution function or probability density function. In molecular kinetic theory in physics, a particle… …   Wikipedia

• Dirac delta function — Schematic representation of the Dirac delta function by a line surmounted by an arrow. The height of the arrow is usually used to specify the value of any multiplicative constant, which will give the area under the function. The other convention… …   Wikipedia

• Normalisable wave function — In quantum mechanics, wave functions which describe real particles must be normalisablefn|1: the probability of the particle to occupy any place must equal 1. Mathematically, in one dimension this is expressed as :int {A}^{B} psi^*(x)psi(x)… …   Wikipedia

• Normalizable wave function — In quantum mechanics, wave functions which describe real particles must be normalizable: the probability of the particle to occupy any place must equal 1. [1] Mathematically, in one dimension this is expressed as: Or identically: where the… …   Wikipedia

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• Green's function (many-body theory) — In many body theory, the term Green s function (or Green function) is sometimes used interchangeably with correlation function, but refers specifically to correlators of field operators or creation and annihilation operators.The name comes from… …   Wikipedia

• Electron localization function — In quantum chemistry, the electron localization function (ELF) is a method for the mapping of electron pair probability in multielectronic systems. ELF s usefulness stems from the way it allows the analysis of electron localization in a… …   Wikipedia