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Calendar of Physics Talks Vienna
| Boundary actions for three dimensional gravity |
| Speaker: | Wout Merbis (ULB) |
| Abstract: | Gravity in three space-time dimensions (3D) admits a Chern-Simons formulation, which has several merits. It highlights the topological properties of gravity in 3D, can facilitate quantization, and is inherently related to holography due to the appearance of edge modes on manifolds with a (conformal) boundary. In this talk we will discuss how three dimensional gravity on manifolds with a boundary may be reduced to a theory on the boundary. We show the boundary dynamics is determined by the asymptotic symmetry group and the boundary theory is related to the geometric action on the coadjoint orbits of this asymptotic symmetry group. We will then discuss several application of this reduction in AdS_3 and in flat space. |
| Date: | Thu, 13.02.2020 |
| Time: | 16:00 |
| Duration: | 60 min |
| Location: | TU Wien, Wiedner Hauptstraße 10, Yellow Area, Seminar Room |
| Contact: | Céline Zwikel |
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