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DY: Fachverband Dynamik und Statistische Physik

DY 23: Statistical physics far from thermal equilibrium

DY 23.2: Talk

Thursday, March 26, 2009, 14:30–14:45, HÜL 386

Transport beyond the Fermi liquid picture of quasiparticles — •Klaus Morawetz — Forschungszentrum Dresden-Rossendorf, PF 51 01 19, 01314 Dresden, Germany — International Center for Condensed Matter Physics, 70904-910, Brasília-DF, Brazil

Considering the microscopic correlations of particles in a more realistic way by taking into account the nonlocal and noninstant character of collisions leads to a nonlocal quantum kinetic theory. This theory is thermodynamically consistent. The balance equations contain besides the Landau quasiparticle parts also the parts of the correlated states which can be seen as molecules. It leads to the same mean-field fluctuations in the one-particle distribution as proposed by Boltzmann-Langevin pictures. The kinetic equation combines time derivatives with finite time stepping known from the logistic mapping. This continuous delay differential equation equation is a consequence of the microscopic delay time representing the dynamics of the deterministic chaotic system.

K. Morawetz, P. Lipavský, and V. Špička, Ann. of Phys. 294, 134 (2001)

P. Lipavský, K. Morawetz, and V. Špička, Kinetic equation for strongly interacting dense Fermi systems, Vol. 26,1 of Annales de Physique (EDP Sciences, Paris, 2001), ISBN: 2-86883-541-4.

K. Morawetz, CHAOS 13 (2003) 572

K. Morawetz, New Journal of Physics 9 (2007) 313