<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Far-from-equilibrium dynamics of ultra-cold Fermi gases"^^ . "In this thesis, far-from-equilibrium dynamics of fermionic quantum gases is discussed utilising functional quantum field theoretical methods. Employing the Schwinger-Keldysh path integral, real-time Schwinger-Dyson/Kadanoff-Baym dynamic equations for the two-point correlation functions are derived from the two-particle irreducible (2PI) effective action. For two specific models, these dynamic equations are investigated further. (a) For an N-fold spin-degenerate ultra-cold Fermi gas, non-perturbative approximation schemes based on either a loop or a 1/N expansion of the 2PI effective action are presented. Adopting these approximations, the long-time evolution of a homogeneous Fermi gas with N=2 after an initial preparation far from thermal equilibrium is thoroughly studied in one spatial dimension. Depending on the total energy, the gas is found to evolve into thermal as well as non-thermal states, the latter becoming manifest in violating the fluctuation-dissipation relation. (b) A similar 1/N expansion is derived for the SU(N) symmetric Kondo lattice model. At leading order, the mean-field dynamic equations of the U=0 Anderson model are recovered. At next-to-leading order (NLO), both spin-flip and direct interactions between localised atoms and conduction band atoms are taken into account non-perturbatively into the dynamic equations. This allows future studies of possibly existing novel phases in coupling regimes where the Kondo screening and RKKY-type interactions are competing."^^ . "2010" . . . . . . . . "Matthias"^^ . "Kronenwett"^^ . "Matthias Kronenwett"^^ . . . . . . "Far-from-equilibrium dynamics of ultra-cold Fermi gases (PDF)"^^ . . . "Kronenwett_Matthias_PhDThesis.pdf"^^ . . . "Far-from-equilibrium dynamics of ultra-cold Fermi gases (Other)"^^ . . . . . . "indexcodes.txt"^^ . . . "Far-from-equilibrium dynamics of ultra-cold Fermi gases (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Far-from-equilibrium dynamics of ultra-cold Fermi gases (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Far-from-equilibrium dynamics of ultra-cold Fermi gases (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Far-from-equilibrium dynamics of ultra-cold Fermi gases (Other)"^^ . . . . . . "small.jpg"^^ . . "HTML Summary of #11565 \n\nFar-from-equilibrium dynamics of ultra-cold Fermi gases\n\n" . "text/html" . . . "530 Physik"@de . "530 Physics"@en . .