Calendar of Physics Talks Vienna

Vienna Theory Lunch Club - Anderson Localization of a Bose-Einstein Condensate
Speaker:Iva Brezinova (VUT)
Abstract:In solid state physics, Anderson localization describes a metal-insulator transition due to disorder in the crystal lattice. The conductance through such a disordered lattice vanishes although classically, one would expect diffusion. Within Feynman's picture of quantum mechanics, Anderson localization can be attributed to the interference of multiply scattered paths. This purely quantum mechanical effect leads to a transition from extended to localized electron waves within the crystal. Although the concept of Anderson localization is by now 50 years old, there are still open questions. Especially the interplay between Anderson localization and interactions between the particles is not yet well understood. Recently, the first direct experimental observation of Anderson localization of matter waves has been achieved in a Bose-Einstein condensate [1]. Anderson localization of a Bose-Einstein condensate opens new ways to investigate the effect of interactions on Anderson localization. In this talk, a review on Anderson localization and Bose-Einstein condensation will be given. It will be explained how an interacting localized Bose-Einstein condensate can be achieved. Finally, the newest theoretical results on Anderson localization of an interacting Bose-Einstein condensate will be presented. [1] J. Billy et al. Nature 453, 891 (2008)
Overview Lunch Seminar
Date: Tue, 28.04.2009
Time: 12:30
Duration: 60 min
Location: TU Vienna, Inst. f. Theoretical Physics, Freihaus, Wiedner Hauptstr. 8-10, 10. OG, SEM136
Contact:Max Attems, Daniel Grumiller, Beatrix Hiesmayr

Rotierende Bose Gase: der niedrigste Landau Level
Speaker:Nicolaj Kuntner (Wien) (Fakultät für Physik)
Abstract:im Rahmen des Seminars für Mathematische Physik
Date: Tue, 28.04.2009
Time: 14:30
Duration: 60 min
Location:Erwin Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock
Contact:J. Yngvason

Approaching mesons in QCD with the Bethe-Salpeter equation
Speaker:Andreas Krassnigg (Univ. Graz) (Fakultät für Physik)
Abstract:im Rahmen des Teilchenphysikseminars
Date: Tue, 28.04.2009
Time: 16:15
Duration: 60 min
Location:Erwin Schrödinger Hörsaal, Boltzmanngasse 5, 5. Stock
Contact:W. Lucha, H. Neufeld