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Single‐ and Two‐Particle Energies and Thermodynamics of Dense Plasmas
Author(s) -
Fehr R.,
Kraeft W. D.
Publication year - 1995
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.2150350602
Subject(s) - plasma , physics , dispersion relation , particle (ecology) , electron , internal energy , function (biology) , atomic physics , quantum electrodynamics , quantum mechanics , oceanography , evolutionary biology , biology , geology
Single‐ and two‐particle states in dense plasmas differ significantly from those of ideal systems and have especially a finite lifetime. Both the bound states and the continuum edges of two‐particle states are controlled by “complex single‐particle energies”. Furthermore, the thermodynamics can be given by these quantities. For this reason we study the spectral weight function of the single‐particle Green's function and solve the equivalent dispersion relation self‐consistently in the Montroll‐Ward approximation of the self energy. We give results for the continuum edges of a hydrogen plasma and of a model electron‐hole plasma and discuss approximations for the equation of state.