Berlin 2015 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 71: Correlated Electrons: Poster Session
TT 71.68: Poster
Mittwoch, 18. März 2015, 15:00–18:00, Poster B
Nonlocal quantum kinetic theory — •Klaus Morawetz1,2,3 and Pavel Lipavsky4 — 1Münster University of Applied Sciences, Stegerwaldstrasse 39, 48565 Steinfurt, Germany — 2International Institute of Physics (IIP), Av. Odilon Gomes de Lima 1722, 59078-400 Natal, Brazil — 3Max-Planck-Institute for the Physics of Complex Systems, 01187 Dresden, Germany — 4Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, 12116 Prague 2, Czech Republic
A quantum kinetic equation of nonlocal and non-instantaneous character is derived which unifies the achievements of the transport in dense quantum gases with the Landau theory of quasiclassical transport in dense Fermi systems. The numerical solution is not more expensive than solving the Boltzmann equation since large cancellations in the off-shell motion appear which are hidden usually in non-Markovian behaviors. The balance equations for the density, momentum and energy include quasiparticle contributions and the correlated two-particle contributions beyond the Landau theory. The medium effects on binary collisions are shown to mediate the latent heat, i.e., an energy conversion between correlation and thermal energy.
[1] V. Špička, P. Lipavský, K. Morawetz,
Phys. Rev. B. 55, 5084 (1997); 5095 (1997)
[2] K. Morawetz, V. Spička, P. Lipavský, H.N. Kwong,
Phys. Rev. C 59,6 (1999) 3052-3059;
[3] P. Lipavský, K. Morawetz, and V. Špička,
Annales de Physique, Paris, 2001, No. 26, 1.