If black hole formation evaporation can be described by an S matrix, information would be expected to come out in black hole radiation. An estimate shows that it may come out initially so slowly, or else be so spread out, that it would never show up in an analysis perturbative in MPlanck/M, or in 1/N for two-dimensional dilatonic black holes with a large number N of minimally coupled scalar fields.
Physical Review Letters
- Pub Date:
- December 1993
- Black holes;
- High Energy Physics - Theory;
- General Relativity and Quantum Cosmology
- 12 pages, 1 PostScript figure, LaTeX, Alberta-Thy-24-93 (In response to Phys. Rev. Lett. referees' comments, the connection between expansions in inverse mass and in 1/N are spelled out, and a figure is added. An argument against perturbatively predicting even late-time information is also provided, as well as various minor changes.)