Calendar of Physics Talks Vienna

CoQuS Colloquium - Alumnus Talk by Alexander Urich
Speaker:Alexander Urich (iThera Medical GmbH)
Abstract:Multispectral Optoacoustic Tomography (MSOT) is a novel biomedical imaging technology that utilizes the photoacoustic effect to visualize and quantify anatomical, functional and molecular information, in vivo, in deep tissue and in real time. Today, MSOT allows the study of disease processes on a molecular level as well as the analysis of pharmacokinetic and biodistribution properties for new substances in small animals. Recently, MSOT has been translated by iThera Medical for clinical use and promises to become a valuable diagnostic tool for a variety of diseases, including skin, breast and thyroid cancer. In my talk, I will discuss the concept and the technology behind MSOT with a focus on image formation and quantification, and introduce some of its currently most promising clinical applications.
Date: Mon, 28.11.2016
Time: 17:00
Location:Lise Meitner Hörsaal, Strudlhofgasse 4, 1st floor, Vienna
Contact:CoQuS Team

Very Low Energy Scanning Electron Microscopy
Speaker:Dr. Ludĕk Frank (Institute of Scientific Instruments, The Czech Academy of Sciences, Brno/CZ)
Abstract:The seminar lecture will introduce the scanning electron microscopy with the biased specimen that enable arbitrary variations of the landing energy of electrons at consistent quality of images. Fundamental electron-optical features of this configuration will be described together with appropriate detection strategies, examples of proven detectors and other required features of the device. Results of demonstration experiments will be presented for imaging in reflected as well as transmitted electrons throughout the entire energy scale. Application examples concerning important families of samples will include metallic and non-metallic materials and semiconductors as well as sections of biological tissues. Treatment of surfaces with slow electrons will be also discussed.
Date: Tue, 29.11.2016
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:Ao.Univ.Prof. Wolfgang Werner

N-jettiness subtractions
Speaker:Maximilian Stahlhofen (Univ. Mainz)
Abstract:im Rahmen des Teilchenphysikseminrs
Date: Tue, 29.11.2016
Time: 16:15
Duration: 60 min
Location:Fakultät für Physik, Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock
Contact:A. Hoang, H. Neufeld

Non-relativistic supergravity
Speaker:Jan Rosseel (Univ. Wien)
Abstract:joint relativity - mathematical physics seminar: Newton-Cartan geometry is a geometric, covariant description of non-relativistic gravity, akin to General Relativity. Recently, it has seen a renewed interest in the context of condensed matter physics and applications of holography to condensed matter systems. In this talk, I will briefly describe the motivation for this renewed interest. I will then outline how Newton-Cartan gravity can be conveniently described as a gauging of a suitable extension of the Galilei algebra of non-relativistic space-time symmetries. Finally, I will show how this gauging procedure can be applied to yield extensions of Newton-Cartan geometry that implement conformal symmetry and supersymmetry.
Date: Thu, 01.12.2016
Time: 14:00
Duration: 60 min
Location:Arbeitsgruppe Gravitation, Währinger Strasse 17, Raum 218, 2. Stock, 1090 Wien
Contact:P.T. Chrusciel, S. Fredenhagen

Ab-initio simulation of attosecond phenomena in solids
Speaker:Shunsuke A. Sato (Center for Computational Sciences, University of Tsukuba)
Abstract:Thanks to the recent development of laser technologies, attosecond phenomena in solids have been attracting much interest. For a microscopic understanding of such ultrafast phenomena, comprehensive description of laser-induced electron dynamics is highly significant. To describe the electron dynamics in solids, we have been developing a first-principles simulation method based the time-dependent density functional theory (TD-DFT). The first-principles approach is quite powerful to investigate the complex electron dynamics and to clarify a fundamental mechanism of laser-induced ultrafast phenomena. In this seminar, I first explain our first-principles simulation method. Then I will show its applications to recent attosecond experiments.
Date: Fri, 02.12.2016
Time: 15:00
Location:Seminar room FH DB gelb 10, Institute for Theoretical Physics – Vienna University of Technology, Wiedner Hauptstraße 8 – 10, 10th floor, B (yellow tower)
Contact:Univ.Prof. Dr. Joachim Burgdörfer

Dynamics and relaxation in integrable quantum systems
Speaker:Jean-Sébastien Caux (University of Amsterdam )
Abstract:This talk will present many results on the out-of-equilibrium dynamics of low-dimensional systems such as interacting atomic gases and quantum spin chains. A number of recent developments will be explained, including a new nonperturbative method for explicitly calculating the relaxation of observables after a quantum quench. Exact solutions to the interaction turn-on quench in the Lieb-Liniger model and to the Néel-to-XXZ quench in spin chains will be presented. Particular emphasis will be given to interesting open issues, including the failure of the (local) Generalized Gibbs Ensemble to properly describe post-quench steady-state properties and the necessity to include quasilocal conserved charges to obtain correct answers.
Date: Fri, 02.12.2016
Time: 15:30
Location:Hörsaal Atominstitut - Stationallee 2, 1020 Wien
Contact:J. Schmiedmayer