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Calendar of Physics Talks Vienna
| Fundamental symmetries and CPT (1/2) [Academic Training Course] |
| Speaker: | Steven D. Bass (Stefan-Meyer-Institut für subatomare Physik, ÖAW) |
| Abstract: | We give an introduction to fundamental symmetries in particle physics, their possible breaking and restoration. This connection between CPT and spin statistics will be discussed. The lecture will conclude with an outlook to future experiments and what symmetries we might expect to find and be broken in precision and high energy experiments. |
| Date: | Mon, 16.12.2013 |
| Time: | 14:00 |
| Duration: | 60 min |
| Location: | Seminarraum 2.08, Boltzmanngasse 3, 1090 Wien |
| Contact: | Ken Suzuki |
| Beware of ... ”Dragons”: Divergent precursors of the Mott-Hubbard metal-insulator transition |
| Speaker: | Thomas Schäfer (Vienna University of Technology) |
| Abstract: | Bulk electronic correlated systems are often well described by dynam- ical mean field theory (DMFT). Amongst several successes, DMFT is able to properly describe the Mott-Hubbard metal-to-insulator transition (MIT), which is an intrinsic non-perturbative phenomenon. In this talk, after a short introduction to DMFT and the MIT at the one-particle-level, the notion of two-particle vertex functions and their necessity for exten- sions of DMFT are discussed. Furthermore, within this two-particle level framework, hallmarks of the MIT are already identified well inside the metallic phase in terms of divergences of the irreducible vertex. Specifically, the strong enhancements and the sign changes of the irreducible vertex functions, which mark this precursor of the MIT, stem from enhanced local scattering processes and can be traced in the high temperature regime up to the atomic limit. |
| Date: | Tue, 17.12.2013 |
| Time: | 12:30 |
| Duration: | 60 min |
| Location: | Univ. of Vienna, Faculty of Physics, Boltzmanngasse 5, 5th floor, Erwin Schrödinger Lecture Hall |
| Contact: | Albert Georg Passegger, Peter Poier - www.univie.ac.at/lunch-seminar |
| Fundamental symmetries and CPT (2/2) [Academic Training Course] |
| Speaker: | Steven D. Bass (Stefan-Meyer-Institut für subatomare Physik, ÖAW) |
| Abstract: | We give an introduction to fundamental symmetries in particle physics, their possible breaking and restoration. This connection between CPT and spin statistics will be discussed. The lecture will conclude with an outlook to future experiments and what symmetries we might expect to find and be broken in precision and high energy experiments. |
| Date: | Tue, 17.12.2013 |
| Time: | 14:00 |
| Duration: | 60 min |
| Location: | Seminarraum 2.08, Boltzmanngasse 3, 1090 Wien |
| Contact: | Ken Suzuki |
| Fuzzy two-dimensional hyperboloid from matrix model |
| Speaker: | Danijel Jurman (Rudjer Boskovic Institute Zagreb) |
| Abstract: | Non-commutative spaces could provide a framework which accommodates both quantum field theory and theory of gravity. An essential feature is that they incorporate the idea of space-time having a structure which prevents the localisation of fields to volumes smaller than certain limiting volume. In this talk we represent the fuzzy two-dimensional hyperboloid by an infinite-dimensional matrix algebra. In analogy to the fuzzy sphere, it is defined by three matrices which generate suitable unitary irreducibile representation of the su(1, 1) Lie algebra. We define the semi-classical limit and we establish a mapping from the matrix algebra generated by non-commutative coordinates to the algebra of functions on classical AdS2 and dS2 spaces. We introduce a matrix model of Yang-Mills type with the fuzzy hyperboloid as solution and discuss the effective geometry in the semi-classical limit. |
| Date: | Tue, 17.12.2013 |
| Time: | 14:15 |
| Duration: | 60 min |
| Location: | Erwin-Schrödinger Hörsaal, Boltzmanngasse 5 |
| Contact: | Harold Steinacker |
| Perturbation Theory for the Tau Hadronic Width |
| Speaker: | Matthias Jamin (Universitat Autonoma de Barcelona) |
| Abstract: | 2. Vorlesung im Rahmen der Schrödinger-Gastprofessur 2013 |
| Date: | Tue, 17.12.2013 |
| Time: | 16:15 |
| Duration: | 60 min |
| Location: | Fakultät für Physik, Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | A. Hoang, H. Neufeld |
| BESIII latest results and perspectives |
| Speaker: | Dr. Marco Maggiora (Turin) |
| Abstract: | A short summary on the latest BESIII results will be delivered, among the others those results related to the discovery of a new "family" of charged charmonium states.
New upgrade are foreseen in the next future for the BESIII spectrometer; in particular a Cylindrical GEM detector is nowadays been built by an international consortium including Italy, P.R.C., Germany and Sweden; the cylindrical GEM project will be described in details as well. |
| Date: | Wed, 18.12.2013 |
| Time: | 16:00 |
| Duration: | 60 min |
| Location: | Stefan-Meyer-Institut für subatomare Physik: Seminar room, Boltzmanngasse 3, Room 2.08 |
| Contact: | Ken Suzuki |
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