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Calendar of Physics Talks Vienna
| A proposal for nonabelian mirrors in two-dimensional theories |
| Speaker: | Eric Sharpe (Virginia Tech, Blacksburg, USA) |
| Abstract: | In this talk we will describe a proposal for nonabelian mirrors to two-dimensional (2,2) supersymmetric gauge theories, generalizing the Hori-Vafa construction for abelian gauge theories. Specifically, we will describe a construction of B-twisted Landau-Ginzburg orbifolds whose classical physics encodes Coulomb branch relations (quantum cohomology), excluded loci, and correlation functions of A-twisted gauge theories. The proposal has been checked in a wide variety of cases, but the talk will focus on exploring the proposal in two examples: Grassmannians (constructed as U(k) gauge theories with fundamental matter), and SO(2k) gauge theories. If time permits, we will also discuss how this mirror proposal can be applied to test and refine recent predictions for IR behavior of pure supersymmetric SU(n) gauge theories in two dimensions. |
| Date: | Tue, 28.05.2019 |
| Time: | 13:45 |
| Duration: | 60 min |
| Location: | Fakultät für Physik, Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | S. Fredenhagen, D. Grumiller, J. Knapp |
| Decoding single-molecular reactions and interactions at dynamic solid/liquid interfaces |
| Speaker: | Laila Moreno Ostertag (TU Wien, Institut für Angewandte Physik) |
| Abstract: | When two surfaces come in contact, the interface is rich in forces of diverse nature: covalent and ionic bonds, Van der Waals attractions, hydrophilic interactions, electric double layer, etc. The surrounding medium, usually an aqueous solution containing a number of ions, adds to the complexity of these exchanges. It is in view of this intricate landscape that several techniques are called onboard for a full picture of bond energies, average work values, and reaction constants to be put together.
Surface functionalization, hydrophobic attraction studied on a membrane model system, average work and energy dissipation after bond breaking and pulling of polymeric tethers, and electrochemistry as an approach to other adhesive processes, especially those related to biocompatible molecules, are the focuses of research that will be incorporated into my thesis.
The integration of AFM, electroch |
| Date: | Tue, 28.05.2019 |
| Time: | 16:00 |
| Location: | TU Wien, Institut für Angewandte Physik, E134 1040 Wien, Wiedner Hauptstraße 8-10 Yellow Tower „B“, 5th floor, SEM.R. DB gelb 05 B |
| Contact: | Univ.Prof. Dr. Markus Valtiner |
| Parton Distribution Functions at the LHC |
| Speaker: | Robert Thorne (University College London) |
| Date: | Tue, 28.05.2019 |
| Time: | 16:15 |
| Duration: | 60 min |
| Location: | Fakultät für Physik, Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | A. Hoang, S. Plätzer, M. Procura |
| Quantum entanglement for precision sensing with atoms and light |
| Speaker: | Onur Hosten (Institute of Science and Technology Austria) |
| Abstract: | Recent advances in the level of precision in controlling atomic and optical systems have enabled the routine generation of quantum entanglement for sensing and information processing applications. Drawing from our experiments, in this talk I will focus on the properties, generation and usage of a particular set of entangled states called spin squeezed states. And discuss the prospects of using them to improve the precision of cold atom based sensors. Topics will include the generation of 20 dB squeezed states using a cavity QED system, implementation of squeezed atomic clocks, quantum correlations in such systems and the concept of quantum phase magnification. I will close up with some near-term research plans. |
| Date: | Wed, 29.05.2019 |
| Time: | 14:15 |
| Location: | Seminar room FH gelb 10, Institute for Theoretical Physics – Vienna University of Technology, Wiedner Hauptstraße 8 – 10, 10th floor, B (yellow tower) |
| Contact: | Joachim Burgdörfer |
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