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Calendar of Physics Talks Vienna
| The full bosonic string as a geometric variational problem |
| Speaker: | Volker Branding (Uni Wien) |
| Abstract: | In this talk we will focus on the action functional of the full bosonic string (the Polyakov action together with a two-form and a scalar potential) as a geometric variational problem.
We will study the existence of critical points, which correspond to solutions to the classical Euler-Lagrange equations for the full bosonic string. We will derive existence results for the case that the domain is either a closed Riemannian surface or two-dimensional Minkowski space and the target a compact Riemannian manifold. If time permits we will point out the mathematical problems that arise when extending the previous analysis to the superstring action.
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| Date: | Tue, 14.03.2017 |
| Time: | 14:15 |
| Duration: | 60 min |
| Location: | Fakultät für Physik, Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | S. Fredenhagen, H. Steinacker |
| Charged lepton decays from soft flavour violation |
| Speaker: | Elke Aeikens (Univ. Wien) |
| Abstract: | im Rahmen des Seminars für Teilchenphysik |
| Date: | Tue, 14.03.2017 |
| Time: | 16:15 |
| Duration: | 60 min |
| Location: | Fakultät für Physik, Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | W. Grimus |
| Introduction to Topological Insulators and Superconductors (Part 2) |
| Speaker: | Prof. Benoit Doucot (LPTHE, Paris-6) |
| Abstract: | In these lectures, I will present some of the important concepts in this field, starting from the Quantum Hall effect, and several of its two-dimensional extensions by Haldane and Kane and Mele. Then, I will discuss the "bulk-edge correspondence" which plays a crucial role for the possible applications of these topological systems. Finally, I will present the key ideas behing the ten-fold classification. These lectures will be self-contained, and mostly with a pedagogical goal. |
| Date: | Wed, 15.03.2017 |
| Time: | 16:00 |
| Duration: | 90 min |
| Location: | 10th floor seminar room in yellow tower of TU Wien Freihaus (Wiedner Hauptstrasse 8-10, A-1040 Vienna) |
| Contact: | Ayan Mukhopadhyay |
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