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Calendar of Physics Talks Vienna
| New higher-spin topological systems in 3D |
| Speaker: | Nicolas Boulanger (UMONS) |
| Abstract: | Motivated by the generation of action principles from off-shell dualisation, we present a general class of free, topological theories in three dimensions that exhibit higher-spin gauge invariance. In the spin-2 case, we recover the triplet system already known before. The higher-spin systems that we obtain, on the other hand, seem to be new. We show that the flat limit of our action around (A)dS_3 background gives rise to a one-parameter family of inequivalent actions in Minkowski space, whose non-Abelian deformations are studied. |
| Date: | Tue, 06.06.2023 |
| Time: | 14:00 |
| Duration: | 60 min |
| Location: | Erwin-Schrodinger-Horsaal (University of Vienna, Boltzmanngasse 5, 5th floor, Room Nr. 3500) |
| Contact: | D. Grumiller, S. Fredenhagen, E. Battista, R. Ruzziconi |
| Simplicity, complexity and the universe |
| Speaker: | Gian Giudice (CERN, Schweiz) |
| Abstract: | Colloquium - Erwin-Schrödinger visiting scientist:
At the foundation of reductionism is the idea â supported by plenty of experimental data â that simple fundamental physical laws emerge at small distances out of complex phenomena at large distances.
This special relationship between simplicity and complexity is what makes the natural world so fascinating and the study of physics so exciting. Developments in quantum cosmology seem to challenge
this view and reveal new scenarios which may affect our search for the fundamental laws of physics. |
| Date: | Tue, 06.06.2023 |
| Time: | 16:15 |
| Duration: | 60 min |
| Location: | Fakultaet fuer Physik, Erwin Schroedinger-HS, Boltzmanngasse 5, 5. Stock |
| Contact: | A. Hoang, M. Procura |
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