Calendar of Physics Talks Vienna

Cosmic carbon chemistry and the search for life in the universe
Speaker:Pascale Ehrenfreund (IST Austria)
Abstract:Astronomical observations have shown that carbonaceous compounds in the gas and solid state, refractory and icy are ubiquitous in our and distant galaxies. Interstellar molecular clouds and circumstellar envelopes are factories of complex molecular synthesis. Also a surprisingly large number of molecules that are used in contemporary biochemistry on Earth are found in our solar system environment. Small solar system bodies hold clues to processes that formed our solar system and probably contributed most of the carbonaceous compounds during the heavy bombardment phase ~3.9 billion years ago to the young planets, a process which may have jump-started life’s origin on Earth. A large amount of organic molecules has been identified in cometary comae and the presence of organic material in asteroids is inferred from reflectance spectra. Laboratory measurements of the carbon fraction of carbon
Date: Mon, 17.11.2014
Time: 16:30
Duration: 60 min
Location:Raiffeisen Lecture Hall
Contact:Arinya Eller

Nichtkommutative Eichtheorie und Matrix Modelle
Speaker:Martin Siegele (Univ. Wien)
Abstract:im Rahmen des Seminars für Mathematische Physik: Zwei verschiedene Zugänge zur Eichtheorie auf der Moyal-Weyl Quantenebene werden diskutiert, entweder über Stern-Produkte oder über Matrix Modelle.
Date: Tue, 18.11.2014
Time: 14:15
Duration: 60 min
Location:Fakultät für Physik, Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock
Contact:H. Steinacker

Two hot topics in top physics
Speaker:Marcel Vos (IFIC, Valencia)
Abstract:im Rahmen des Teilchenphysikseminars
Date: Tue, 18.11.2014
Time: 16:15
Duration: 60 min
Location:Fakultät für Physik, Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock
Contact:A. Hoang, H. Neufeld

Quantum field theory in black hole backgrounds
Speaker:Friedrich Schöller (ITP, TU Wien)
Abstract:Continuation of the seminar series "Quantum & Gravity", based on the Jerusalem lecture notes by Daniel Harlow, http://arxiv.org/abs/arXiv:1409.1231
Date: Wed, 19.11.2014
Time: 12:45
Duration: 75 min
Location:SEM 136, TU Wien, Freihaus, 10th floor (Wiedner Hauptstr. 8-10, A-1040 Vienna)
Contact:Daniel Grumiller

News from low regularity GR
Speaker:Roland Steinbauer (Vienna)
Abstract:im Rahmen des Literaturseminars: We report on recent progress in the study of spacetimes where the metric is C^{0,1} (locally Lipschitz continuous) or C^{1,1} (first derivatives locally Lipschitz). In particular, we focuss on existence and regularity of geodesics in the first case and discuss the prospects of proving Hawking's singularity theorem in the second case
Date: Thu, 20.11.2014
Time: 14:00
Duration: 60 min
Location:Arbeitsgruppe Gravitation, Währinger Strasse 17, Seminarraum A, 2. Stock, 1090 Wien
Contact:P.T. Chrusciel

Epitaxial Design and Spectroscopy of Low-Dimensional Electronic Materials with Spin-Controlled Properties
Speaker:Jörg Schäfer (Physikalisches Institut, Universität Würzburg)
Abstract:Recent developments in the epitaxy of atomically defined structures on surfaces have opened new opportunities to realize specific electron interaction regimes. Depending on the architecture and dimensionality, the charge carriers may be affected by, e.g., strong electron correlations or spin interactions. These effects can be accessed experimentally by high-resolution angle-resolved photoemission, which can detect the characteristic many-body spectra including spin. This is complemented by low-temperature scanning tunneling spectroscopy as a local atomic probe. The talk presents an overview of the state-of-the-art of such tunable electron systems, and gives examples for the various phenomena.
Date: Fri, 21.11.2014
Time: 14:30
Duration: 45 min
Location:Seminar Room CBEG02 (387, Photonics); Gußhausstraße 27
Contact:Andrei Pimenov