Spinors in singular 2+1 geometries

Announcing the seminar on Friday, 28 November, at 13:30, at room 1.221 (CSMB building), Zum Großen Windkanal 2, 12489 Berlin.

Dr. Jorge Zanelli (Centro de Estudios Cientificos, Chile).

Abstract:

The black hole in asymptotically AdS (2+1)-spacetime belongs to a family of geometries that includes naked singularities of various types. The existence of globally defined spin-1/2 fields in these geometries is reviewed and a few surprising features are exhibited, hinting at a rich vacuum structure.