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Calendar of Physics Talks Vienna
| Beta equilibrium and bulk viscosity in neutron star mergers |
| Speaker: | Mark Alford (Washington University, St. Louis, USA) |
| Abstract: | Neutron star mergers are laboratories of hot and dense nuclear matter, including
its response to temperature and density changes that
occur on millisecond timescales. This gives them the ability to probe
dynamical properties that may help us to uncover exotic phases of nuclear or
quark matter.
Beta (proton fraction) equilibration, which can occur on the same timescale,
plays a crucial role in the physics of mergers.
I will talk about corrections to the traditional criteria for beta
equilibrium that become significant in neutron star mergers, and
the likely role of bulk viscosity arising from the processes
that establish beta equilibrium.
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| Date: | Mon, 17.06.2019 |
| Time: | 17:00 |
| Duration: | 60 min |
| Location: | Institute for Theoretical Physics, TU Wien, Seminar room 10th floor (yellow area), Wiedner Haupstr. 8-10, 1040 |
| Contact: | Anton Rebhan |
| Electron Hydrodynamics & Black Holes in Anti de Sitter Space-time |
| Speaker: | René Meyer (Universität Würzburg) |
| Abstract: | In this talk I will first introduce the general notion of hydrodynamics as an effective theory and the approximation involved, as well as given an overview over the emerging topic of electron hydrodynamics in condensed matter systems. I will then review the relation between hydrodynamics and black hole physics within the context of the AdS/CFT correspondence, and here in particular how the AdS/CFT correspondence predicts the hydrodynamic transport properties of certain strongly coupled states of matter. Finally, I will present results of a phenomenological study of strongly coupled fluids in channel geometries motivated by the AdS/CFT correspondence. I will also discuss the effect of Hall viscosity on these channel flows, as well as characteristics of strongly correlated materials necessary in order to show strong Coulomb interactions. |
| Date: | Tue, 18.06.2019 |
| Time: | 13:45 |
| Duration: | 60 min |
| Location: | Fakultät für Physik, Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | S. Fredenhagen, D. Grumiller |
| Interaction of slow electrons with matter for nanoscale characterisation of solids |
| Speaker: | Olga Ridzel (TU Wien, Institut für Angewandte Physik) |
| Abstract: | Electron spectroscopy represents one of the most popular tools for surface analysis. The interpretation of electron spectra acquired by means of methods of electron spectroscopy requires the knowledge on the interaction processes of electrons with matter. In this work, the investigation of electron transport in solids is performed by means of two approaches: the invariant imbedding method and the Monte Carlo simulation. The former approach is employed in problems of the interpretation and analysis of energy spectra of complicated multi-component materials such as graphene oxide. The possibility of the detection of light elements, including hydrogen and its isotopes, in di_erent targets by means of elastic peak electron spectroscopy (EPES) is demonstrated. The latter approach is employed for the investigation of the secondary electron emission phenomenon. Unfortunately, electron emission |
| Date: | Tue, 18.06.2019 |
| 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: | Ao.Univ.Prof. Dr. Wolfgang Werner |
| Models and composite Higgs bosons, and constraints on these models. Higgs as a Goldstone boson. |
| Speaker: | Michael E. Peskin (SLAC, Stanford University) |
| Abstract: | 3. Vorlesung im Rahmen der Schrödinger-Gastprofessur 2019
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| Date: | Tue, 18.06.2019 |
| Time: | 16:15 |
| Duration: | 60 min |
| Location: | Fakultät für Physik, Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | A. Hoang, H. Neufeld |
| The Randall-Sundrum geometry as a model for composite Higgs |
| Speaker: | Michael E. Peskin (SLAC, Stanford University) |
| Abstract: | zur 4. Vorlesung im Rahmen der Schrödinger-Gastprofessur 2019
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| Date: | Fri, 21.06.2019 |
| Time: | 16:15 |
| Duration: | 60 min |
| Location: | Fakultät für Physik, Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | A. Hoang, H. Neufeld |
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