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One‐Particle Spectral Function of Electrons in a Hot and Dense Plasma
Author(s) -
Wierling A.,
Röpke G.
Publication year - 1998
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.2150380405
Subject(s) - plasma , physics , electron , atomic physics , particle (ecology) , computational physics , function (biology) , core (optical fiber) , spectral line , plasma parameters , quantum mechanics , optics , oceanography , evolutionary biology , biology , geology
A self‐consistent determination of the spectral function and the self‐energy of electrons in a hot and dense plasma is reported. The self‐energy is determined within the approximation of the screened potential (GW approximation). The rigorous self‐consistent calculation of the spectral function is compared with the quasi‐particle approximation. Results are presented for the solar core plasma as well as for ICF plasmas. It is shown, that the quasi‐particle concept is not an adequate concept for these plasmas. For the sake of comparison an effective quasi‐particle picture is introduced.