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Some remarks on 't Hooft's S-matrix for black holes

High Energy Physics - Theory 2007-05-23 v1

Abstract

We discuss the limitations of 't Hooft's proposal for the black hole S-matrix. We find that the validity of the S-matrix implies violation of the semi-classical approximation at scales large compared to the Planck scale. We also show that the effect of the centrifugal barrier on the S-matrix is crucial even for large transverse distances.

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Cite

@article{arxiv.hep-th/9603067,
  title  = {Some remarks on 't Hooft's S-matrix for black holes},
  author = {N. Itzhaki},
  journal= {arXiv preprint arXiv:hep-th/9603067},
  year   = {2007}
}

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12 pages