momentum density

momentum density

[mō′ment·əm ′den·səd·ē]
(physics)
The momentum per unit volume of any given field.
References in periodicals archive ?
Similarly, field momentum density is the product of inertia density and velocity.
Positron annihilation spectroscopy and X-ray Compton scattering can be used to measure electron momentum density.
To our best knowledge, however, the research in the orbital angular momentum density of the elegant Laguerre-Gaussian beam has not been reported so far.
Among the topics are probability concepts in physics as the path to statistical mechanics, atoms in molecules, density-functional approximations for exchange and correlation, electron density and molecular similarity, probing electron dynamics with the Laplacian of the momentum density, and applications of modern density functional theory to surfaces and interfaces.
Field quantities such as mass density, momentum density, angular momentum density, and energy density are defined on the mesoscopic space.
From the aforementioned E-L equations the configurational material stress and the configurational material momentum density can be derived [8].
Reconstruction of Momentum Density Distribution from 2D ACAR Data via Maximum Entropy
The linear momentum density is given by the Poynting vector E x B and the angular momentum is the cross product of the Poynting vector with the position vector.
This is made in terms of the electromagnetic momentum density
can be interpreted as a local electromagnetic momentum density of the radiation field, with [?
can be interpreted as an electromagnetic momentum density with S denoting the Poynting vector, and
projections of the energy-momentum tensor of time density fields, which are physically observable characteristics of such fields--the energy density q (69), the momentum density [J.