Gravitational creation of particles by a vacuum bubble
Abstract
The outgoing energy flux of massless scalar particles created by the gravitational field of a bubble of anti-de Sitter space expanding into Minkowski space is calculated. The flux is proportional to the curvature coupling constant (ξ) of the scalar field. A positive flux, such as for a conformally invariant scalar field (ξ=1/6), would help stabilize Minkowski space against decay.
I would like to thank B. Allen for helpful discussions.- Publication:
-
Physics Letters B
- Pub Date:
- May 1984
- DOI:
- 10.1016/0370-2693(84)90028-5
- Bibcode:
- 1984PhLB..139...31H