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Calendar of Physics Talks Vienna
| Exploring the molecule distributions with photon statistics in scanning far-field fluorescence microscopy |
| Speaker: | Haisen Ta (Department of NanoBiophotonics, Max Planck Institute for Biophysical Chemistry, Göttingen, Germany) |
| Abstract: | Fluorescence microscopy provides the information of not only the position but also the local abundance of the molecules. Although the molecular brightness varies due to the heterogeneity of local environment, the molecular abundance is usually obtained by dividing the measured fluorescence intensity by that of single emitters assuming constant molecular brightness throughout the whole sample. Here we obtain the distribution of the molecules by exploiting the detected photon statistics of the emitters. The quantum nature of the photon emission from a single emitter allows no more than one photon at a time. It is not only the identity of the existence of single emitters, but also encodes the number of the emitters in the photon statistics especially in the simultaneous detected multiple photons or the coincidence photons. By considering the spatial distribution of the coincidence photons, |
| Date: | Tue, 19.01.2016 |
| Time: | 16:00 |
| Location: | Technische Universität Wien, Institut für Angewandte Physik, E134 yellow tower „B“, 5th floor, Sem.R. DB gelb 05 B (room number DB05L03) 1040 Wien, Wiedner Hauptstraße 8-10 |
| Contact: | Univ.Prof. Dr. Gerhard Schütz |
| Heavy Jet Mass with Massive Quarks |
| Speaker: | Christopher Lepenik (Univ. Wien) |
| Abstract: | im Rahmen des Teilchenphysikseminars |
| Date: | Tue, 19.01.2016 |
| Time: | 16:15 |
| Duration: | 60 min |
| Location: | Fakultät für Physik, Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | A. Hoang |
| On higher-spin gauge theories |
| Speaker: | Stefan Fredenhagen (Golm & Berlin) |
| Abstract: | Joint Theory Physics Seminar: I first give an introduction to higher-spin gauge theories. I will discuss the free theory,
and the difficulties that arise when one tries to introduce interactions and how they can
be overcome. Finally I discuss asymptotic symmetries of higher-spin theories on AdS_3
and their role in the higher-spin AdS/CFT correspondence.
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| Date: | Wed, 20.01.2016 |
| Time: | 13:30 |
| Duration: | 75 min |
| Location: | Währinger Straße 17, Kavalierstrakt, 1. Stock, Victor-Franz-Hess-Hörsaal |
| Contact: | P.T. Chrusciel, A. Hoang |
| 25 years of R&D on inorganic scintillator and their applications in the crystal clear collaboration |
| Speaker: | Dr. Etiennette Auffray (CERN) |
| Abstract: | The Crystal Clear Collaboration (CCC) has been created in 1991 in the frame of the DRDC program at CERN. Its initial goal was to identify the most suitable inorganic scintillators as candidates for an electromagnetic calorimeter at the future Large Hadron Collider. The R&D carried out led to the choice of PbWO4 as material for the electromagnetic calorimeter of the CMS detector.
Moreover, for 25 years the Crystal Clear Collaboration has also carried out intense R&D on inorganic scintillating materials for novel ionizing radiation detectors for use in high-energy physics, medical imaging and industrial applications. Such R&D covers generic activities such as the understanding of the scintillation mechanism, to the conceptual design, test, implementation and integration of large detector systems. The main results achieved by the CCC and the current domains of activities will be presented. |
| Date: | Wed, 20.01.2016 |
| Time: | 16:00 |
| Duration: | 60 min |
| Location: | Boltzmanngasse 3, 1090 Wien, Seminarraum 3-2-08 |
| Contact: | Prof. Dr. Eberhard Widmann, Dr. Martin Simon |
| The Class of j-Projection Bodies |
| Speaker: | Felix Dorrek (Institute of Discrete Mathematics and Geometry, TU Wien) |
| Abstract: | im Rahmen des Seminars in Geometric Analysis and Physics
(GAP Seminar): |
| Date: | Thu, 21.01.2016 |
| Time: | 11:00 |
| Duration: | 60 min |
| Location: | Arbeitsgruppe Gravitation, Währinger Strasse 17, Seminarraum A, 2. Stock, 1090 Wien |
| Contact: | M. Bauer (Fak. Math, U.V.), V. Branding (Fak. Math, T.U.), D. Fajman (Fak. Phys, U.V.), J. Joudioux (Fak. Phys, U.V.), B. Schörkhuber (Fak. Math.,V.U.) |
| Probing non equilibrium quantum fields with cold atoms |
| Speaker: | Jörg Schmiedmayer (TU Wien) |
| Abstract: | Joint Theory Physics Seminar: Ultra cold quantum gases are an ideal system to probe many body physics and
quantum fields.
In this talk I will give an overview of the different possibilities and what we were
able to learn about many body systems and their underlying quantum description.
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| Date: | Thu, 21.01.2016 |
| Time: | 14:00 |
| Duration: | 60 min |
| Location: | Währinger Straße 17, Kavalierstrakt, 1. Stock, Victor-Franz-Hess-Hörsaal |
| Contact: | P.T. Chrusciel, A. Hoang |
| Spin clocks: Investigation of fundamental symmetries in nature |
| Speaker: | Dr. Werner Heil (Universität Mainz) |
| Abstract: | Symmetries and conservation laws determine the interactions between particles and the structures in which matter organizes itself. Some of the most fundamental symmetries in physics are the space-time symmetries of Lorentz transformations - where the laws of physics are unchanged under boosts and rotations - and CPT - the combination of charge conjugation (C), parity inversion (P) and time reversal (T). Precision measurements using “atomic clocks” have flourished in recent years as attempts to find cracks in the well established Standard Model of particle physics by searching for tiny violations of empirical symmetry laws. Polarized 3He and 129Xe are ideally suited for pushing the limits of sensitivity due to the extraordinarily long phase-coherence time of their precessing spins of about 100h. A resulting spin clock would be ... [full abstract https://indico.smi.oeaw.ac.at/event/140] |
| Date: | Fri, 22.01.2016 |
| Time: | 10:30 |
| Duration: | 60 min |
| Location: | Stefan Meyer Institut, Boltzmanngasse 3, 1090 Wien, Seminarraum 3-2-08 |
| Contact: | Prof. Dr. Eberhard Widmann, Dr. Martin Simon |
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