A covariant entropy conjecture

@article{Bousso1999ACE,
  title={A covariant entropy conjecture},
  author={R. Bousso},
  journal={Journal of High Energy Physics},
  year={1999},
  volume={1999},
  pages={004-004}
}
  • R. Bousso
  • Published 1999
  • Physics
  • Journal of High Energy Physics
We conjecture the following entropy bound to be valid in all space-times admitted by Einstein's equation: let A be the area of any two-dimensional surface. Let L be a hypersurface generated by surface-orthogonal null geodesics with non-positive expansion. Let S be the entropy on L. Then S ≤ A/4. We present evidence that the bound can be saturated, but not exceeded, in cosmological solutions and in the interior of black holes. For systems with limited self-gravity it reduces to Bekenstein's… Expand
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