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Calendar of Physics Talks Vienna
| Violation of Lorentz invariance, related phenomena, and experiments |
| Speaker: | Marco Schreck (Indiana University) |
| Abstract: | In the past 15 years the search for a possible violation of Lorentz invariance has become one pillar in fundamental research. This talk will give an introduction to this hot and fascinating topic. First of all it will be motivated why Lorentz symmetry may be violated in the vicinity of the Planck scale. As a next step an effective framework, which describes Lorentz violation for energies much smaller than the Planck scale, shall be introduced. The latter is known as the Standard-Model Extension whose Lagrange density includes all terms consistent with the ordinary Standard Model (plus gravity) but violating Lorentz invariance. This will lead us to possible phenomena that occur in this context such as vacuum birefringence. The last part of the talk will be dedicated to examples for experiments that are used to search for Lorentz violation in nature. |
| Date: | Tue, 17.06.2014 |
| Time: | 12:30 |
| Duration: | 50 min |
| Location: | Univ. of Vienna, Faculty of Physics (Boltzmanngasse 5, 5th floor, Schrödinger Lecture Hall / large seminar room) |
| Contact: | peter.poier@univie.ac.at |
| Entanglement in Quantum Field Theory and the Information Loss Paradox |
| Speaker: | Albert Huber (Univ. Wien) |
| Abstract: | im Rahmen des Seminars für Mathematische Physik |
| Date: | Tue, 17.06.2014 |
| Time: | 14:15 |
| Duration: | 60 min |
| Location: | Fakultät für Physik, Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | J. Yngvason, J. Schlemmer |
| Quantum Optics control system for single atoms experiments |
| Speaker: | Dipl.-Ing. Maria Bernard-Schwarz (IAP & National Instruments Germany GmbH, Munich/Germany) |
| Abstract: | The two main components for quantum optics experiments are a resonator, in our case to interact with single atoms, and computational power in order to simulate experiments, control the setup and analyze results. Our system of interest is a strongly coupled atom-cavity experiment. The goal is to develop tools for controlling the external degrees of freedom, the motion of the atom [1], as well as the internal degrees of freedom, the quantum state of the system [2]. The experimental control requires the generation of precisely timed computer-controlled measurement sequences. In order to fulfill these requirements on the hardware programming level, we use a Real-Time Operating System. This guarantees the response of control tasks within certain time periods. By implementation of a Real-Time based system, we centralize the controller, data acquisition cards, FPGAs and quantum optics analysis |
| Date: | Tue, 17.06.2014 |
| 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: | Ao.Univ.Prof. Dr. Martin Gröschl |
| Speaker: | Sven Moch (DESY, Hamburg) |
| Abstract: | im Rahmen des Teilchenphysikseminars |
| Date: | Tue, 17.06.2014 |
| Time: | 16:15 |
| Duration: | 60 min |
| Location: | Fakultät für Physik, Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | A. Hoang, V. Mateu |
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