Calendar of Physics Talks Vienna

The biggest Eye on the Sky - Extreme Physics and Life beyond the Solar System with the European Extremely Large Telescope
Speaker:Markus Kissler-Patig (ESO, Garching bei München)
Abstract:On behalf of its 15 member states (incl. Austria), the European Southern Observatory (ESO) is planing the largest optical Telescope ever built: the European Extremely Large Telescope (EELT). This new research infrastructure for astronomy starts to compete in size and cost with the large particle physics infrastructures. We will briefly present ESO's current Very Large Telescope, precursor of the E-ELT, as an example of the most modern astronomical observatory. The E-ELT project will then be detailed before presenting the expected scientific breakthroughs: from the search for life beyond the Solar system to extreme physics ranging from exploring the strong field limit of GR in the vicinity of black holes, to measurements of the cosmic expansion driven by dark energy and the variability of fundamental constants throughout the age of the universe.
Date: Mon, 28.03.2011
Time: 15:00
Duration: 60 min
Location:Hörsaal des Institut für Astronomie, Türkenschanzstraße 17, 1180 Wien
Contact:Univ. Prof. J. Alves, Univ. Prof. B. Ziegler, Doz. C. Wulz

Three dimensional gravity and logarithmic conformal field theories
Speaker:Thomas Zojer (TU Wien)
Abstract: Three-dimensional massive gravity has been extensively studied in the last years as a toy model for quantum gravity. It is simple enough to find 'solutions', e.g. propagating degrees of freedom, gravitons, or other interesting ingredients like black holes. An important tool is the gauge gravity duality, or AdS/CFT correspondence, which in the context of three-dimensional quantum gravity is easily tractable since a lot is known about two dimensional CFTs. I am going to address special deformations of gravity theories and discuss the respective changes on the CFT side that lead to the conjecture of AdS/LCFT, i.e. some gravity theories are dual to so-called logarithmic conformal field theories.
Date: Tue, 29.03.2011
Time: 12:30
Duration: 60 min
Location:Uni Wien ( Boltzmanngasse 5, 5th floor, Schrödinger HS / large seminar room )
Contact:Sabine Ertl

Thermische Eigenschaften von deformierten Quantenfeldtheorien
Speaker:Albert Huber (Univ. Wien)
Abstract:im Rahmen des Seminars für Mathematische Physik
Date: Tue, 29.03.2011
Time: 14:15
Duration: 60 min
Location:Fakultät für Physik, Erwin Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock
Contact:J. Yngvason

Experimental and theoretical studies for the CERN Super Proton Synchrotron (SPS) Vacuum System
Speaker:Dipl.-Ing. Donat Holzer (Cern/CH)
Abstract:the LHC and its injector chain the electron cloud effect induced by photoelectrons, gas ionization and secondary electrons emitted from the beam pipe walls can be a performance limitation. A possible mitigation strategy is to coat the beam pipe walls with a material with exhibits a low secondary electron yield. Amorphous carbon thin films, produced by DC magnetron sputtering, are currently studied extensively at CERN for that purpose. In my talk, I will first present the coating procedure and characterization methods of amorphous carbon films. In the second part, I will describe the LINAC 3 experimental setup to measure heavy-ion induced desorption yields and give first results for amorphous carbon films. Furthermore, an extension to the Inelastic Thermal Spike (ITS) model is presented, with the goal to predict heavy-ion induced desorption yields. Finally, I will present my future work, including pressure simulations for the LINAC 3 experiment and a further extension of the ITS model to higher energies relevant for the SPS.
Date: Tue, 29.03.2011
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. Herbert Störi

Isospin violation in leptonic pion and kaon decays
Speaker:Helmut Neufeld (Univ. Wien)
Abstract:im Rahmen des Teilchenphysikseminars
Date: Thu, 31.03.2011
Time: 14:15
Duration: 60 min
Location:Fakultät für Physik, Erwin Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock, 1090 Wien
Contact:G. Ecker

Reducing orbital eccentricity for moving puncture simulations of binary black holes
Speaker:Michael Pürrer (Univ. Wien)
Abstract:im Rahmen des Literaturseminars
Date: Thu, 31.03.2011
Time: 14:15
Duration: 60 min
Location:Arbeitsgruppe: Gravitation, Währinger Strasse 17, Seminarraum A, 2. Stock
Contact:R. Beig

Thermal States on a Quantum Computer
Speaker:Kristan Temme (Univ. Wien)
Abstract:im Rahmen der gemeinsam veranstalteten Seminare "Komplexe Stochastische Systeme" (Univ.Wien) und "Analyse Komplexer Systeme" (Med. Univ.Wien)
Date: Fri, 01.04.2011
Time: 14:00
Duration: 90 min
Location:Medizinische Univ., Bauteil 88, Informatikbibliothek, Ebene 3 (Zugang über Spitalgasse 23)
Contact:H. Hüffel, Stefan Thurner

Biosensing with Optical Microcavities
Speaker:Frank VOLLMER (MPI for the Science of Light, Erlangen)
Date: Fri, 01.04.2011
Time: 15:30
Location:TU Wien Atominstitut, Hörsaal, Stadionallee 2, 1020 Wien
Contact:A. Rauschenbeutel