On the derivation of Hawking radiation associated with the formation of a black hole
Abstract
We show how in gravitational collapse the Hawking radiation at large times is precisely related to a scaling limit on the sphere where the star radius crosses the Schwarzschild radius (as long as the back reaction of the radiation on the metric is neglected). For a free quantum field it can be exactly evaluated and the result agrees with Hawking's prediction. For a realistic quantum field theory no evaluation based on general principles seems possible. The outcoming radiation depends on the field theoretical model.
- Publication:
-
Communications in Mathematical Physics
- Pub Date:
- February 1990
- DOI:
- 10.1007/BF02096757
- Bibcode:
- 1990CMaPh.127..273F