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Calendar of Physics Talks Vienna
| Developing and testing models for inflation and dark energy |
| Speaker: | Gianmassimo Tasinato (Institute for Cosmology and Gravitation, Portsmouth University, UK) |
| Abstract: | In the first part of my presentation, I will give an overview of my work on early universe cosmology and on dark energy model building. In the second part, I will focus on a brief review of my recent work on modifications of General Relativity to explain the current acceleration of our universe. I will conclude the talk with a discussion of my future research projects. |
| Date: | Tue, 23.04.2013 |
| Time: | 09:15 |
| Location: | TU Wien Hauptbibliothek Vortragsraum 5OG, Resselg. 4, 1040 Wien |
| Contact: | Joachim Burgdörfer |
| Recents Developments in Non-Perturbative QFT in Curved Spacetimes |
| Speaker: | Mauricio Leston (University of Buenos Aires) |
| Abstract: | The so-called constructive QFT approach has provided several examples of interacting QFT for D=2 and D=3 Minkowski spacetime. That was done by the use of a well defined Euclidean functional integral. Some years ago, certain steps of this approach have been extended to D=2 static spacetimes. In this talk I will briefly review the Euclidean formulation of QFT in Minkowski space time, with special emphasis on the notion of reflection positivity and its importance in the constructive quantum field theory approach. Then, I will describe its recent extension to static spacetimes and some open problems. |
| Date: | Tue, 23.04.2013 |
| Time: | 12:30 |
| Duration: | 60 min |
| Location: | Univ. of Vienna, Faculty of Physics, Boltzmanngasse 5, 5th floor, Erwin Schrödinger Lecture Hall |
| Contact: | Philipp Köhler, Albert Georg Passegger - www.univie.ac.at/lunch-seminar |
| Wickprodukte im stochastischen Rahmen |
| Speaker: | Sabina Alazzawi (Univ.Wien) |
| Abstract: | im Rahmen des Seminars für Mathematische Physik |
| Date: | Tue, 23.04.2013 |
| Time: | 14:15 |
| Duration: | 60 min |
| Location: | Fakultät für Physik, Erwin Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | J. Yngvason |
| Carbon Nanomembranes (CNMs): Two-dimensional Functional Materials visualized by Helium Ion Microscopy (HIM) |
| Speaker: | Prof. Dr. Armin Gölzhäuser (University of Bielefeld, Faculty of Physics, Bielefeld/Germany) |
| Abstract: | One nanometer thick, mechanically stable carbon nanomembranes (CNMs) are fabricated by radiation induced cross-linking of molecular monolayers. The resulting CNMs can be spanned free-standing over openings or used to cover other materials. They are chemically functionalized by coupling other molecules to its top and bottom surfaces. Upon pyrolysis at ~1000K, CNMs transform into graphene. Stacking of CNMs creates hybrid materials with tailored mechanical, optical and electrical properties. We image CNMs with a helium ion microscope. In this technique a focused He+ beam of ~0.3 nm diam. is scanned to generate images with topographical and chemical contrast. |
| Date: | Tue, 23.04.2013 |
| 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: | Univ.Prof. Dr. Friedrich Aumayr |
| ThreeTypes of Dark Matter and their Unification |
| Speaker: | Ernest Ma (Univ.of Clifornia, Riverside) |
| Abstract: | im Rahmen des Teilchenphysikseminars |
| Date: | Tue, 23.04.2013 |
| Time: | 16:15 |
| Duration: | 60 min |
| Location: | Fakultät für Physik, Erwin Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | W. Grimus, H. Neufeld |
| Spatially homogenous cosmology and dynamical systems |
| Speaker: | Gernot Heissel (Vienna) |
| Abstract: | im Rahmen des Literaturseminars |
| Date: | Thu, 25.04.2013 |
| Time: | 14:00 |
| Duration: | 60 min |
| Location: | Arbeitsgruppe: Gravitation, Währinger Strasse 17, Seminarraum A, 2. Stock |
| Contact: | P. Chrusciel |
| From co-evolving agents to temporal mode and structure of interaction networks: ecology and economics |
| Speaker: | Prof. Henrik Jeldtoft Jensen (Complexity & Networks Group, Dept.of Mathematics, Imperial College London |
| Abstract: | im Rahmen der gemeinsam veranstalteten Seminare "Komplexe Stochastische
Systeme" (Univ.Wien) und "Analyse Komplexer Systeme" (Med.Univ.Wien) |
| Date: | Fri, 26.04.2013 |
| Time: | 10:15 |
| Duration: | 90 min |
| Location: | Fakultät für Physik, Kurt Gödel Hörsaal, Strudlhofgasse 4, Erdgeschoss, rechts |
| Contact: | H. Hüffel, Stefan Thurner |
| Chromosome Packing in Cell Nucleus |
| Speaker: | Caroline Uhler (IST Austria) |
| Abstract: | im Rahmen der gemensam veranstalteten Seminare "Komplexe Stochastische
Systeme" (Univ.Wien) und "Analyse Komplexer Systeme" (Med.Univ.Wien) |
| Date: | Fri, 26.04.2013 |
| Time: | 14:15 |
| Duration: | 90 min |
| Location: | Fakultät für Physik, Erwin Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | H. Hüffel, Stefan Thurner |
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