Calendar of Physics Talks Vienna

Dynamics of cold and controlled molecules
Speaker:Melanie Schnell (Max Planck Advanced Study Group at the Center for Free Electron Laser Science, Hamburg & Max Planck Institut für Kernphysik, Heidelberg)
Abstract:During the last decade, many techniques have been developed to cool and manipulate molecules. Using optical, magnetic and electric fields, it had become possible to gain complete control over molecules in the gas phase and produce unique samples with a well-defined computer‐controlled velocity and velocity distribution, well-determined positions and quantum states. On the one hand, these samples are used to reach the ultracold regime and to study collective phenomena. On the other hand, they are ideally suited for applications such as studying cold collisions, performing precision studies to determine the time variation of fundamental constants and the effect due to parity violation in chiral molecules, and to study the intra- and intermolecular dynamics of such samples. In my talk, I will introduce the recent techniques to manipulate the motion of polar molecules with particular emphasis on Stark deceleration and trapping, and I discuss their applications in the above-mentioned fields.
Date: Mon, 29.11.2010
Time: 17:30
Duration: 60 min
Location:Universität Wien, Ernst-Mach-Hörsaal, Boltzmanngasse 5, 2nd floor, 1090 Wien
Contact:Christiane Losert-Valiente Kroon

Time resolved measurement of automotive exhaust mass flow
Speaker:Dipl.-Ing. Katharina Doblhoff-Dier (Technische Universität Wien, Institut für Angewandte Physik)
Abstract:Exhaust gas regulations for automotive engines become increasingly strict. New ecological legislations have already set high demands to measurement technology. Time-resolved measurements of exhaust emission - including the mass flow rate - would provide a better basis for an optimization of the engine and allow even stricter laws. This talk gives an overview on the issues connected with the time-resolved measurement of automotive exhaust mass flow. The focus is directed on measurement techniques using differential pressure devices. Encountered problems, such as flow and temperature pulsations, are discussed and possible solutions are explained. Results are presented from measurements performed on a flow bench and on an engine in a test bed.
Date: Tue, 30.11.2010
Time: 16:00
Location:Technische Universität Wien, Institut für Angewandte Physik, Seminarraum 134A, Turm B (gelbe Leitfarbe), 5. OG, 1040 Wien, Wiedner Hauptstraße 8-10
Contact:Ao.Univ.Prof. Dr. Martin Gröschl

On stable self-similar blow up for equivariant wave maps - The linearized problem
Speaker:Dr. Birgit Schörkhuber (TU Wien) (Fakultät für Physik)
Abstract:im Rahmen des Literaturseminars
Date: Thu, 02.12.2010
Time: 13:30
Duration: 60 min
Location:Währinger Strasse 17, Seminarraum A, 2. Stock
Contact:P. Chrusciel

Two Higgs doublet models, family replication and fermion mass hierachies
Speaker:Otto Nachtmann (Univ. Heidelberg)
Abstract:im Rahmen des Teilchenphysikseminars
Date: Thu, 02.12.2010
Time: 14:15
Duration: 60 min
Location:Fakultät für Physik, Erwin Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock, 1090 Wien
Contact:G. Ecker, H. Neufeld

Real-time probing of structural dynamics in solids by femtosecond x-ray diffraction
Speaker:Thomas Elsaesser, Max-Born-Institut, Berlin (ADLIS Seminar)
Date: Fri, 03.12.2010
Time: 14:00
Duration: 60 min
Location:SR Photonik: Institut f. Photonik, Gusshausstraße 27, 1040 Wien / Erdgeschoß, CBEG02
Contact:Heike Höller, SFB ADLIS Sekretariat, 58801 13625

An Evolutionary Economics Model for Innovation Processes
Speaker:Peter Klimek (Medizinische Universität Wien und IIASA)
Abstract:im Rahmen der gemeinsam veranstalteten Seminare "Komplexe Stochastische Systeme" (Univ.Wien) und "Analyse Komplexer Systeme" (Medizinische Univ. Wien)
Date: Fri, 03.12.2010
Time: 14:30
Duration: 90 min
Location:Medizinische Univ. Bauteil 88, Bibliothek
Contact:H. Hüffel