Calendar of Physics Talks Vienna

Speaker:Roland WIESENDANGER (Universität Hamburg)
Abstract:Scanning probe methods (SPM) allow the investigation of local physical and chemical properties down to the atomic scale, in addition to providing fascinating real-space views of atomic and molecular structures in the presence of defects or disorder. This lecture will focus on recent advances in scanning tunnelling and atomic force microscopy and spectroscopy as well as on novel applications of these techniques in modern condensed matter physics, including atomic-scale studies of semiconductors, metals, magnetic and molecular materials. Most recent exciting developments based on advanced SPM instrumentation working at ultra-low temperatures and high magnetic fields will be presented, revealing quantum effects directly in real space at very low energy scales.
Date: Mon, 27.10.2008
Time: 17:30
Duration: 60 min
Location:Technische Universität Wien, Freihaus, Hörsaal 6 (Turm A, grüner Bereich, 2. Stock) Wiedner Hauptstr. 8-10, A-1040 Wien
Contact:Wiener Physikalisches Kolloquium, Jörg Schmiedmayer

Vienna Theory Lunch Club - Towards renormalizable models for gauge fields in non-commutative space
Speaker:Daniel Blaschke (TU Wien)
Abstract:When trying to construct a quantum field theory on non-commutative space-time, e.g. by employing the so-called Groenewold-Moyal star product, one inevitably runs into the infamous UV/IR mixing problem where new kinds of non-local IR divergences prevent the model from being renormalizable. In fact, so far only some modified scalar field theories on Euclidean non-commutative spaces have been found to be renormalizable by successfully circumventing problems due to UV/IR mixing. In this talk I give an introduction to this interesting field of research and present a promising candidate for a renormalizable non-commutative gauge theory.
Overview Vienna Theory Lunch Club
Date: Tue, 28.10.2008
Time: 12:30
Duration: 60 min
Location:University of Vienna, Boltzmanngasse 5, 5th Floor, Large Seminar Room
Contact:Max Attems, Daniel Grumiller, Beatrix Hiesmayr

Mikrokanonische Bose-Einstein Kondensation
Speaker:Susanne Urach (Fakultät für Physik)
Abstract:im Rahmen des Seminars für Mathematische Physik
Date: Tue, 28.10.2008
Time: 14:15
Duration: 60 min
Location:Großer Seminarraum, Boltzmanngasse 5, 5. Stock
Contact:J. Yngvason

Neutrino masses and mixing from the seesaw mechanism
Speaker:Werner Rodejohann (MPI für Kernphysik, Heidelberg) (Fakultät für Physik)
Abstract:im Rahmen des Teilchenphysikseminars
Date: Tue, 28.10.2008
Time: 16:15
Duration: 60 min
Location:Großer Seminarraum, Boltzmanngasse 5, 5. Stock
Contact:W. Grimus, H. Neufeld

Festes D2 als effektive Quelle für ultra-kalte Neutronen
Speaker:Axel R. MÜLLER (TU München)
Date: Fri, 31.10.2008
Time: 15:15
Location:Seminarraum Atominstitut, Stadionallee 2, 1020 Wien
Contact:Jörg Schmiedmayer