Calendar of Physics Talks Vienna

Progress on studies of the most essential kaonic nucleus K-pp
Speaker:Prof. Dr. Akinobu Dote (KEK Theory Center, Institute for Particle and Nuclear Study (IPNS), High Energy Accelerator Research Organization (KEK))
Abstract:In hadron physics and strange nuclear physics, nuclear systems with antikaon (Kbar meson = (K–, K0bar), involving a strange quark) have been one of hot topics. The attraction between a Kbar meson and a nucleon (N) is so strong to form a quasi-bound state which corresponds to an excited hyperon Λ(1405). Due to such a strong Kbar-N attraction, nuclear systems with antikaons, namely kaonic nuclei, are expected to have several interesting properties. In particular, possible formation of a dense state seems the most interesting, because it is related to the partial restoration of the chiral symmetry which is an important theme that hadron physicists have been investigating for a long time. For a decade, to reveal the nature of kaonic nuclei in detail, both experimentalists and theorists have devoted lots of their effort... [ full abstract on https://indico.smi.oeaw.ac.at/event/216/]
Date: Thu, 23.02.2017
Time: 16:00
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

On falling into black holes
Speaker:Mihalis Dafermos (Lowndean Professor of Astronomy and Geometry University of Cambridge & Professor at Princeton University)
Abstract:The celebrated "black hole" spacetimes of Schwarzschild and Kerr play a central role in our current understanding of Einstein's general theory of relativity. Are these spacetimes stable, however, as solutions to the Einstein vacuum equations, in their exterior region? And what fate awaits physical observers who enter inside a "generic" black hole? It turns out that these two questions are intimately related and the answer to the second may be more disturbing than previously thought. This talk will try to explain how so.
Date: Thu, 23.02.2017
Time: 17:00
Duration: 60 min
Location:Erwin Schrödinger International Institute for Mathematics and Physics, Boltzmanngasse 9, 1090 Wien, Boltzmann lecture hall