Fate of gravitational collapse in semiclassical gravity

@article{Barcel2008FateOG,
  title={Fate of gravitational collapse in semiclassical gravity},
  author={Carlos Barcel{\'o} and Stefano Liberati and Sebastiano Sonego and Matt Visser},
  journal={Physical Review D},
  year={2008},
  volume={77},
  pages={044032}
}
While the outcome of gravitational collapse in classical general relativity is unquestionably a black hole, up to now no full and complete semiclassical description of black hole formation has been thoroughly investigated. Here we revisit the standard scenario for this process. By analyzing how semiclassical collapse proceeds we show that the very formation of a trapping horizon can be seriously questioned for a large set of, possibly realistic, scenarios. We emphasize that in principle the… 

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