CPT

Calendar of Physics Talks Vienna

The Effective Field Theory of General Relativity
Speaker:Prof. John F. Donoghue (Univ. of Massachusetts Amherst)
Abstract:3. Vorlesung im Rahmen der Schrödinger-Gastprofessur 2015
Date: Tue, 27.10.2015
Time: 16:15
Duration: 60 min
Location:Fakultät für Physik, Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock
Contact:P.T. Chrusciel, A. Hoang, H. Neufeld

Ein Schlüsseljahr für die Klimapolitik – was kann der Beitrag der Wissenschaft sein?
Speaker:O.Univ.Prof. Dr. Helga Kromp-Kolb
Abstract:Kromp-Kolb.pdf
Date: Tue, 27.10.2015
Time: 17:30
Duration: 60 min
Location:Lise-Meitner Hörsaal (ehemal. Großer Hörsaal der Experimentalphysik), Universität Wien
1090 Wien, Strudlhofgasse 4 / Boltzmanngasse 5
Contact:Christl.Langstadlinger@univie.ac.at

A no-hair theorem for non-isolated black holes
Speaker:Norman Gürlebeck (Bremen)
Abstract:In my talk, I prove a no-theorem for static and axially symmetric black holes surrounded by matter. More precisely, I will show that external fields do not induce multipole moments in such black holes that could be read off at infinity. The key ingredients in the proof is the source integral formalism, which will be introduced as well. It allows to define quasi-locally for each region in the spacetime its contribution to the asymptotically defined total multipole moments of that spacetime.
Date: Thu, 29.10.2015
Time: 14:00
Duration: 60 min
Location:Arbeitsgruppe Gravitation, Währinger Strasse 17, Seminarraum, 5. Stock, 1090 Wien
Contact:P.T. Chrusciel

Entanglement entropy in a holographic model of the Kondo effect
Speaker:Mario Flory (MPI Munich)
Abstract:Starting from a holographic model of the Kondo effect recently proposed by Erdmenger et. al., i.e. of a magnetic impurity interacting with a strongly coupled system, I focus on the challenges of computing gravitational backreaction in this model, which demands a study of the Israel junction conditions. I present general results on these junction conditions which may be relevant more generally in the AdS/boundary CFT correspondence. Furthermore, similar junction conditions for a bulk Chern-Simons field appearing in the holographic Kondo model are discussed. I then focus on the computation and interpretation of entanglement entropy in the holographic Kondo model. The holographic g-theorem will be discussed as well as a geometric construction that allows to reproduce results obtained by conformal perturbation theory on the boundary.
Date: Thu, 29.10.2015
Time: 16:00
Duration: 60 min
Location:SEM 136, TU Wien, Freihaus, 10th floor (Wiedner Hauptstr. 8-10, A-1040 Vienna)
Contact:Daniel Grumiller

Scrutinizing the alignment limit in two-Higgs-doublet models
Speaker:Sabine Kraml (Univ.Grenoble - Alpes)
Abstract:im Rahmen des Teilchenphysikseminars
Date: Fri, 30.10.2015
Time: 16:15
Duration: 60 min
Location:Fakultät für Physik, Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock
Contact:H. Neufeld