Heidelberg 1999 – scientific programme
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P: Plasmaphysik
P 5: Theorie I
P 5.1: Fachvortrag
Monday, March 15, 1999, 14:00–14:30, ZO 2
Recent Progress in the Solution of Quantum Kinetic Equations for Dense Plasmas — •M. Bonitz1, H. Haberland2, D. Semkat1, D. Gericke2, and S. Kosse2 — 1Fachbereich Physik, Universität Rostock, 18051 Rostock — 2Institut für Physik, Ernst-Moritz-Arndt-Universität, 17487 Greifswald
Our contribution gives an overview on quantum kinetic equations for
correlated plasmas and on the progress achieved in the last 5 years.
We are now able to compute the quantum collision integrals on the
Landau, Lenard-Balescu and T-matrix level, and furthermore, to solve
the Kadanoff-Baym equations. This allows to study
Quantum and spin statistics effects in dense plasmas. On the other hand, we have recently
performed investigations of the relaxation behavior of plasmas, including
the buildup of correlations, which showed indications of significant
quantum effects. Our contribution gives a detailed analysis of these
nonequilibiurm phenomena. We present numerical investigations of the
relaxation behavior of the electron distribution function in a dense
plasma which include exchange (Hartree–Fock)
contributions and vertex corrections to the collision integral.
Furthermore, we consider the relaxation of kinetic and correlation energy
in the ultra–short time regime and the evolution of the spectral
function.
[1] M. Bonitz, D. Semkat, and D. Kremp, Phys. Rev. E 56, 1246 (1997)
[2] D. Gericke, S. Kosse, M. Schlanges, and M. Bonitz, Phys. Rev. B (1999)
[3] D. Semkat, M. Bonitz, and H. Haug, Europ. J. Phys. B (1999)
[4] M. Bonitz, Quantum Kinetic Theory, B.G. Teubner, Stuttgart/Leipzig 1998