Calendar of Physics Talks Vienna

Atomic clocks, exchange interaction and giant coherence times
Speaker:Peter Rosenbusch (LBE-SYRTE, Observatoire Paris)
Date: Mon, 05.12.2011
Time: 17:30
Duration: 60 min
Location:Univ. Wien, Ernst-Mach-Hörsaal, Boltzmanngasse 5, 2nd floor
Contact:Dr. Christiane Losert / Univ. of Vienna

The Phenomenology of Yoctosecond Pulses from a Quark-Gluon Plasma
Speaker:Peter Somkuti (TU Wien)
Abstract:A quark-gluon plasma formed in heavy-ion collision experiments may feature initial momentum-space anisotropies. Such an anisotropic QGP exhibits a direct photon spectrum which is strongly dependent on the emission angle. Using models for the time evolution of the plasma, a time-dependent photon signal can be calculated whose length is on the order of yoctoseconds. Placing a detector at lower angles close to the beam axis, a photon signal shows a remarkable double-peak shape. In this talk, I will explain the mechanisms that give rise to double pulses, how the effect of such pulses could be observed, and what these pulses can tell us about the quark-gluon plasma itself.
Date: Tue, 06.12.2011
Time: 12:30
Duration: 60 min
Location:TU Wien (Wiedner Hauptstr. 8-10), yellow area, 10th floor, seminar room E136
Contact:Sabine Ertl

Unabhängigkeitsbegriffe in relativistischer QFT
Speaker:Suzanne Chesnay (Univ.Wien)
Abstract:im Rahmen des Seminars für Mathematische Physik
Date: Tue, 06.12.2011
Time: 14:15
Duration: 60 min
Location:Fakultät für Physik, Erwin Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock, 1090 Wien
Contact:J. Yngvason

Preparation and stabilisation of a non-classical field in a cavity by quantum feedback
Speaker:Clément SAYRIN (Laboratoire Kastler Brossel, Ecole Normale Supérieure, Paris)
Date: Tue, 06.12.2011
Time: 15:30
Location:Hörsaal Atominstitut, Stadionallee 2, 1020 Wien
Contact:Arno Rauschenbeutel