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Calendar of Physics Talks Vienna
| Calabi-Yau compactifications and supersymmetric gauge theory |
| Speaker: | Johanna Knapp (TU Wien) |
| Abstract: | im Rahmen des Seminars für Mathematische Physik: The mathematics of Calabi-Yau spaces plays a crucial role in the context of string theory. In this talk I present a supersymetric gauge theory in two dimensions (the gauged linear sigma model) which encodes information about Calabi-Yaus. I will focus in particular on new methods for computing quantum corrections in string compactifications, most notably the hemisphere partition function, which computes the quantum corrected central charge of D-branes on Calabi-Yaus. |
| Date: | Tue, 24.01.2017 |
| Time: | 14:15 |
| Duration: | 60 min |
| Location: | Fakultät für Physik, Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | S. Fredenhagen, H. Steinacker |
| Elektroweak Sudakov logarithms in e+e-→ t t |
| Speaker: | Daniel Lechner (Univ. Wien) |
| Abstract: | im Rahmen des Teilchenphysikseminars |
| Date: | Tue, 24.01.2017 |
| Time: | 16:15 |
| Duration: | 60 min |
| Location: | Fakultät für Physik, Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | A. Hoang, H. Neufeld |
| Hyperon spectroscopy and production dynamics with PANDA at FAIR |
| Speaker: | Dr. Karin Schönning (University Uppsala) |
| Abstract: | One of the most challenging questions in contemporary physics is how and why the strong interaction confines the quarks into composite hadrons; either mesons (quark-antiquark) or baryons (three quarks).
Hyperons are baryons where one (or several) light quark(s) are replaced by a heavier one(s). Strange hyperon spectroscopy and dynamics can provide keys to the strong interaction in the so far poorly understood confinement domain. Ever since first observed in experiment, hyperons have played an important role in our understanding of fundamental interactions. In the early days of particle physics, the newly discovered ground-state hyperons provided a key to the eight-fold way of the strong interaction from which the quark model emerged. In the same way, the excited hyperon spectra ... [full abstract available here https://indico.smi.oeaw.ac.at/event/214/] |
| Date: | Wed, 25.01.2017 |
| Time: | 17:00 |
| Duration: | 60 min |
| Location: | Stefan-Meyer-Institut, Boltzmanngasse 3, 1090 Wien, Seminarraum 3-2-08 (2. Stock) |
| Contact: | Prof. Dr. Eberhard Widmann, Dr. Martin Simon |
| Analog models of Hawking and Casimir physics in atomic and optical systems |
| Speaker: | Iacopo Carusotto (INO-CNR BEC Center, Trento) |
| Abstract: | In this talk I will review the state of the art in the theoretical and experimental
study of analog models of quantum field theories in flat, curved, or time-dependent
backgrounds using condensed matter and optical systems. In the first part, I will
focus on the theory of the stimulated and spontaneous Hawking emission of phonons
in flowing fluids of ultracold atoms and of photons in semiconductor microcavities and
I will outline the state of the art of experimental investigations. In the second part, I will
introduce analogs of two-level emitters coupled to the quantum field and I will present recent works on the observable consequences of Casimir physics and of Ginzburg radiation processes for moving emitters. I will conclude with an outline of more speculative investigations in the direction of highlighting the back-reaction effect
of Hawking emission onto a black hole horizon.
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| Date: | Thu, 26.01.2017 |
| Time: | 14:00 |
| Duration: | 60 min |
| Location: | Arbeitsgruppe Gravitation, Währinger Strasse 17, Victor-Franz-Hess-Hörsaal, Kavalierstrakt, 1. Stock |
| Contact: | P.T. Chrusciel |
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