2D Black Holes by dimensional reduction

por Alessandro Fabbri (Dipartimento di Fisica dell'Universita di Bologna and INFN sezione di Bologna, I)

jueves 21 feb. 2002 12:30 → 13:30 Europe/Madrid

Sala Seminarios (Dpto. de Física Teórica (UVEG))

A four dimensional massless and minimally coupled scalar field acquires, after dimensional reduction under spherical symmetry a nontrivial coupling with the dilaton field. Within this theory and in the background Schwarzschild spacetime, we compare the results for the stress tensor coming from canonical quantization with those derived using the effective action method.