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Determination of Electron Momentum Density from Electron Number Density. New Version of Semiclassical Transformation
Author(s) -
Kokko K.
Publication year - 1989
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221510117
Subject(s) - semiclassical physics , momentum (technical analysis) , electron , isotropy , physics , transformation (genetics) , electron density , quantum electrodynamics , momentum transfer , quantum mechanics , chemistry , quantum , biochemistry , finance , scattering , economics , gene
Abstract It is possible to determine the approximate momentum density of an inhomogeneous electron gas from the corresponding electron density by a semiclassical transformation. For the present by this method it is possible to calculate only isotropic total momentum densities. A method is introduced which can be used to calculate directional momentum densities in some special cases as well as partial momentum densities.