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Inclusion of the Full Electromagnetic Interaction in Correlations and Physical Quantities
Author(s) -
Lambert A. J. D.,
Schram P. P. J. M.
Publication year - 1985
Publication title -
beiträge aus der plasmaphysik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0005-8025
DOI - 10.1002/ctpp.19850250202
Subject(s) - isotropy , homogeneous , physics , electromagnetic field , wavenumber , quantum electrodynamics , electric field , field (mathematics) , classical mechanics , mathematical analysis , quantum mechanics , mathematics , statistical physics , pure mathematics
Density‐density correlations in a homogeneous, isotropic, classical plasma are calculated with inclusion of the full electromagnetic interaction. This leads to isotropic homogeneous field limits, contrary to the electrostatic approximation, that is consequently not valid for small wavenumbers. Application of the theory of generalized functions, combined with Kramer Kronig relations makes it possible to deal with the integrals that occur in the transverse part, provided a nonrelativistic approximation has been applied. As a side result Kubo's formula, applied to the electric conductivity, and generally derived under restriction to the electrostatic approximation, reappears for the case that the full electromagnetic interaction is included.