Seminars

Seminars take place at 14:15 in the Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5th floor.

 Upcoming Seminars (2016-2017):

  • 12-10-2017 : Harald Grosse (Uni Wien) on 'Quantum field theory models on noncommutative spaces' (Joint relativity-mathematical physics seminar)

Abstract: In order to improve QFT in 4D we (HG and Raimar Wulkenhaar) study models over quantized space-times. They become Matrix models, which share all interesting features of a QFT: A graphical description with Feynman rules, power counting dimension, regularisation and renormalisation, divergence of the perturbation series.
We report on models, where we can give exact non-perturbative formulae for all renormalised correlation functions. We describe a map, which projects these matrix correlation functions to Schwinger functions of an ordinary quantum field theory. The Schwinger 2-point functions satisfy in some models the Osterwalder-Schrader axioms.

Past Seminars (2016-2017):

  • Christoph Roupec (Uni Wien) on 'Inflation in Supergravity' (27-06-2017)
  • Andjelo Samsarov (Ruder Boskovic Institute, Zagreb) on 'Black hole quasinormal modes in twisted models of matter minimally coupled to gravity' (30-05-2017)
  • Yang-Hui He on 'Calabi-Yau Volumes and Reflexive Polytopes' (23-05-2017)
  • Anton Alekseev (University of Geneva) on 'Path integrals for Wilson lines and Wilson surfaces' (16-05-2017)
  • Tristan McLoughlin (Trinity College Dublin) on 'Twistors and Conformal Higher-Spin Theory' (09-05-2017)
  • Stefano Cremonesi (Durham University) on 'The infrared physics of bad theories' (24-04-2017)
  • Harold Steinacker (Uni Wien) on `Covariant Quantum Spaces, the IKKT-model & Gravity' (04-04-2017)
  • Eric Bergshoeff (University of Groningen) on `Applied Newton-Cartan Geometry' (21-03-2017)
  • Volker Branding (Uni Wien) on `The full bosonic string as a geometric variational problem' (14-03-2017)
  • Rutger Boels (DESY, Hamburg) on `Minimal Quantum Field Theory' (31-01-2017)
  • Johanna Knapp (TUWien) on `Calabi-Yau compactifications and supersymmetric gauge theory' (24-01-2017)
  • Pan Kessel (MPI für Gravitationsphysik, Potsdam) on `Four-dimensional Vasiliev Theory : An Introduction' (17-01-2017)
  • Marcus Sperling (University of Vienna) on `Properties of the monopole formula' (10-01-2017)
  • Joris Raeymaekers (Prague) on `Multi-centered AdS3 solutions from Virasoro conformal blocks' (19-12-2016)
  • Yuhma Asano (DIAS, Dublin) on `Emergent geometries in the BMN matrix model' (13-12-2016)
  • Maja Buric (Belgrade University) on `Noncommutative spaces and differential geometry' (22-11-2016)
  • Miguel Tierz (Lisbon University) on `Matrix models and phase transitions in supersymmetric gauge theories in three dimensions' (15-11-2016)
  • Raimar Wulkenhaar (Münster) on `Exact solution of quantum field theory toy models' (08-11-2016)
  • Enrice Brehm (LMU, München) on `Classical Holographic Codes' (25-10-2016)
  • Andrea Campoleoni (ULB, Brussels) on `Higher spin theories from a Hamiltonian viewpoint' (18-10-2016)
  • Iva Lovrekovic (TUWien) on `Conformal gravity in four dimensions' (11-10-2017)