We re-examine the brick-wall model in the context of spacetime foam. In particular we consider a foam composed by wormholes of different sizes filling the black hole horizon. The contribution of such wormholes is computed via a scale invariant distribution. We obtain that the brick wall divergence appears to be logarithmic when the cutoff is sent to zero.
Modern Physics Letters A
- Pub Date:
- November 2004
- General Relativity and Quantum Cosmology;
- High Energy Physics - Theory
- RevTeX4, 7 pages. Accepted for publication on Mod. Phys. Lett. A