Why aren't black holes infinitely produced?

@article{Giddings1994WhyAB,
  title={Why aren't black holes infinitely produced?},
  author={Giddings},
  journal={Physical review. D, Particles and fields},
  year={1994},
  volume={51 12},
  pages={
          6860-6869
        }
}
  • Giddings
  • Published 19 December 1994
  • Economics
  • Physical review. D, Particles and fields
Unitarity and locality imply a remnant solution to the information problem, and also imply that Reissner-Nordstr\"om black holes have an infinite number of internal states. Pair production of such black holes is reexamined including the contribution of these states. It is argued that the rate is proportional to the thermodynamic quantity Tr${\mathit{e}}^{\mathrm{\ensuremath{-}}\mathrm{\ensuremath{\beta}}\mathit{H}}$, where the trace is over the internal states of a black hole; this is in… 

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