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Calendar of Physics Talks Vienna
| Trimers, molecules and polarons in polarized atomic Fermi gases |
| Speaker: | Meera Parish (Cavendish Laboratory, Cambridge) |
| Abstract: | In this talk, I will consider an atomic Fermi gas in the limit of extreme spin imbalance, where one has a single spin-down impurity atom interacting attractively with a spin-up atomic Fermi gas. By constructing variational wave functions for polarons, molecules and trimers, I will explore the quantum phase transitions between each of these bound states as a function of mass ratio and interaction strength. I will show that the p-wave trimer can in fact be stabilised by the presence of the Fermi sea, much like the situation in the Cooper pair problem. Finally, I will discuss how these transitions might be observed in cold-atom experiments. Lunch Club Overview |
| Date: | Tue, 25.01.2011 |
| Time: | 12:30 |
| Duration: | 60 min |
| Location: | Uni Wien ( Boltzmanngasse 5, 5th floor, Schrödinger HS / large seminar room ) |
| Contact: | Niklas Johansson |
| Speaker: | Kurt Fritz und Harald Ringbauer |
| Abstract: | im Rahmen des Seminars für Mathematische Physik |
| Date: | Tue, 25.01.2011 |
| Time: | 14:15 |
| Duration: | 90 min |
| Location: | Fakultät für Physik, Erwin Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock, 1090 Wien |
| Contact: | J. Yngvason |
| Speaker: | Univ.-Prof. Piotr T. Chrusciel (Univ. Wien) (Fakultät für Physik) |
| Abstract: | Antrittsvorlesung |
| Date: | Wed, 26.01.2011 |
| Time: | 17:00 |
| Duration: | 90 min |
| Location: | Großer Festsaal der Universität Wien, Dr. Karl-Lueger-Ring 1, 1. Stock |
| Contact: | P. T. Chrusciel |
| Neutrinos from neutralino annihilation in the Sun |
| Speaker: | Vassilis Spanos (NCSR Demokritos, Athens ) |
| Abstract: | We will discuss the neutrino fluxes from neutralino LSP annihilations inside the Sun, in the context of various supersymmetric models, like the Constrained Minimal Supersymmetric Standard Model (CMSSM) and the Non-Universal Higgs supersymmetric Model (NUHM). We will show that there are large regions of typical CMSSM and NUHM parameter space where the LSP density inside the Sun is not in equilibrium, so that the annihilation rate may be far below the capture rate. Moreover, we will show that neutrino fluxes depend on the solar model and on the parameters of the spin-dependent and spin-independent neutralino-nucleus scattering. Scanning the cosmologically favoured parts of the parameter space, we will see that the IceCube/DeepCore detector can probe at best only parts of this parameter space. |
| Date: | Thu, 27.01.2011 |
| Time: | 14:00 |
| Duration: | 60 min |
| Location: | HEPHY Bibliothek, Nikolsdorfergasse 18, 1050 Wien |
| Contact: | Helmut Eberl, HEPHY Vienna |
| Alpha_s from 5-jet cross sections |
| Speaker: | Rikkert Frederix (Univ. Zürich) |
| Abstract: | im Rahmen des Teilchenphysikseminars |
| Date: | Thu, 27.01.2011 |
| Time: | 14:15 |
| Duration: | 60 min |
| Location: | Fakultät für Physik, Erwin Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | A. Hoang, H. Neufeld |
| Danger of Leverage in a World of Perfect Hedging |
| Speaker: | Sebastian Poledna (Med.Uni Wien) |
| Abstract: | Im Rahmen der gemeinsam veranstalteten Seminare "Komplexe Stochastische Systeme" (Uni Wien) und "Analyse Komplexer Systeme" (Med.Univ.Wien) |
| Date: | Fri, 28.01.2011 |
| Time: | 14:30 |
| Duration: | 90 min |
| Location: | Medizinische Univ., Seminarraum 513, Bauteil 88, |
| Contact: | H. Hüffel, Stefan Thurner |
| Erste Integrale aktiver Systeme |
| Speaker: | Maximilian Sadilek (Uni Wien) |
| Abstract: | im Rahmen der gemeinsam veranstalteten Seminare "Komplexe Stochastische Systeme" (Uni Wien) und "Analyse Komplexer Systeme" (Med.Univ.Wien) |
| Date: | Fri, 28.01.2011 |
| Time: | 16:15 |
| Duration: | 90 min |
| Location: | Fakultät für Physik, Erwin Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | H. Hüffel, Stefan Thurner |
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