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Generalized T‐Matrix Approximation in Quantum Kinetic Equations
Author(s) -
Semkat D.,
Kremp D.,
Bonitz M.
Publication year - 2002
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 - 10.1002/1521-3986(200201)42:1<31::aid-ctpp31>3.0.co;2-h
Subject(s) - ansatz , boltzmann equation , matrix (chemical analysis) , physics , quantum , plasma , mathematical physics , plasma modeling , relaxation (psychology) , quantum mechanics , statistical physics , materials science , psychology , social psychology , composite material
The orrect description of relaxation processes in strongly correlated plasmas requires quantum kinetic equations which go beyond the usual Boltzmann equation. Here, the Kadanoff‐Baym equations (KBE) in the frame of real‐time Green's functions have a high degree of generality. We present a possibility to solve the KBE in T‐matrix approximation by solving the Lippmann Schwinger equation using a separable potential ansatz. Results for the T‐matrix are shown for a hydrogen plasma for several screening parameters.