Calendar of Physics Talks Vienna

Bose-Einstein-Condensation of Photons
Speaker:Martin WEITZ (Institut für Angewandte Physik, Universität Bonn)
Date: Mon, 30.05.2011
Time: 17:30
Location:Universität Wien, Lise Meitner Hörsaal, Strudlhofg. 4, 1090 Wien
Contact:J. Schmiedmayer

Local thermal equilibrium in relativistic quantum field theory
Speaker:Jan Schlemmer (University of Vienna)
Abstract: In the description of spatially extended physical systems one often assigns to them thermal quantities (temperature, pressure, ...) varying in space and time. While there is a well established theory (statistical mechanics) for linking the thermodynamic description of systems with constant temperature ("global equilibrium") to microscopic models, for the case of varying thermal parameters the situation is much less clear cut and in fact there are many proposed frameworks to link the microscopic and macroscopic level. In my talk I will present a framework especially suited for relativistic quantum field theory, talk about its generalization to quantum fields on curved spacetime and try to summarize some results obtained for specific systems, both on flat and curved spacetime.
Date: Tue, 31.05.2011
Time: 12:30
Duration: 60 min
Location:TU Wien (Wiedner Hauptstr. 8-10, yellow area, 10th floor, seminar room E136 )
Contact:Sabine Ertl

Multiparticle S-matrix models in 1+1 dimensions and associated Quantum Fields
Speaker:Christian Schützenhofer (Univ.Wien)
Abstract:im Rahmen des Seminars für Mathematische Physik
Date: Tue, 31.05.2011
Time: 14:15
Duration: 60 min
Location:Fakultät für Physik, Erwin Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock, 1090 Wien
Contact:J. Yngvason

Is quantum gravity observable?
Speaker:Martin Bojowald (Penn State University)
Abstract:Conceptually, a combination of quantum mechanics with general relativity is required to understand fundamental space-time structures. Estimates of the relevant scales based on dimensional arguments, however, are not encouraging as regards observations. Quantum gravity can be observable only if there are magnification effects of its corrections to general relativity or quantum field theory at least in some regimes. This talk discusses examples seen in recent research on loop quantum gravity. The main effects occur in early-universe cosmology, and some of them might be relevant for particle physics as well.
Date: Wed, 01.06.2011
Time: 14:00
Duration: 60 min
Location:FH HS 2 (Freihaus, Wiedner Hauptstrasse 8-10, 2nd floor, yellow), Vienna University of Technology
Contact:Daniel Grumiller (VUT) and Claudia-Elisabeth Wulz (HEPHY)

Bulk viscosity and particle production in quark gluon plasma
Speaker:V. Sreekanth (Physical Research Laboratory, Navrangpura, Ahmedabad, India)
Date: Fri, 03.06.2011
Time: 14:00
Duration: 60 min
Location:Institute for Theoretical Physics, TU Wien, SEM 136, 10th floor, Wiedner Hauptstr. 8-10, 1040 Wien
Contact:Anton Rebhan, TU Wien

Quantum Mechanical Calculations on Semiconductor Structures: Spintronics, Biomarker and Solar Cell Applications
Speaker:Adam GALI (Hungarian Academy of Sciences, Budapest)
Date: Fri, 03.06.2011
Time: 15:30
Location:TU Wien Atominstitut, Hörsaal, Stadionallee 2, 1020 Wien
Contact:J. Schmiedmayer