Calendar of Physics Talks Vienna

Bridgeland stability and BPS states
Speaker:Magnus Engenhorst (MPI Bonn)
Abstract:Stability conditions play a prominent role in algebraic geometry and string theory. The initial motivation comes from Michael Douglas's work on D-branes. Bridgeland stability has now a lot of applications, e.g. in birational geometry or Teichmüller theory. In this short course we seehow one is naturally lead from the study of BPS states in supersymmetric field theories to stability conditions on certain (triangulated) categories associated with quivers with potential. We introduce the theory of (Bridgeland) stability conditions on triangulated categories and develop tools like tilting theory and t-structures. Further we discuss the relationship to Donaldson-Thomas invariants and (the categorification of) cluster algebras. This short lecture course is aimed at advanced master students, PhD students and Postdocs in mathematics and physics.
Date: Mon, 15.09.2014
Time: 14:00
Duration: 90 min
Location:ESI, Boltzmann Lecture Hall
Contact:Nils Carqueville

Fermion Mass Matrices and Textures
Speaker:Prof. Manmohan Gupta (Panjab Univ., Chandigarh, India)
Date: Tue, 16.09.2014
Time: 14:15
Duration: 60 min
Location:Fakultät für Physik, Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock
Contact:W. Grimus

Chiral anomalies and Transport
Speaker:Karl Landsteiner (Universidad Autonoma de Madrid)
Abstract:I will discuss how chiral anomalies give rise to dissipationless transport. In particular I will try to relate well-known and old subjects, such as the Quantum Hall Effect with new developments such as the Chiral Magnetic Effect. I will emphasize the role of anomaly inflow and interpret the Bardeen-Zumino terms relating covariant and consistent currents in a way analogous to the Callen-Harvey mechanism. In analogy to what in is called the "Bulk-Boundary" correspondence in the theory of the QHE I will argue for a "Bulk-Bulk" correspondence in the theory of CME related effects.
Date: Tue, 16.09.2014
Time: 15:00
Duration: 60 min
Location:Seminar room 136, 10th floor, yellow section, Institute for Theoretical Physics, TU Wien
Contact:Andreas Schmitt

Initial data for rotating cosmologies
Speaker:Stefan Pletka (Gravitationsphysik, Wien)
Abstract:I describe the construction of certain classes of axially symmetric initial data with positive cosmological constant via the conformal method.
Date: Thu, 18.09.2014
Time: 13:00
Location:Währinger Straße 17, Common Room, 1. Stock
Contact:P.T. Chrusciel