HOW FAST CAN A BLACK HOLE RELEASE ITS INFORMATION

When a shell collapses through its horizon, semiclassical physics suggests that information cannot escape from this horizon. One might hope that nonperturbative quantum gravity effects will change this situation and avoid the information paradox. We note that string theory has provided a set of states over which the wave function of the shell can spread, and that the number of these states is large enough that such a spreading would significantly modify the classically expected evolution. In this article we perform a simple estimate of the spreading time, showing that it is much shorter than the Hawking evaporation time for the hole. Thus information can emerge from the hole through the relaxation of the shell state into a linear combination of fuzzballs.

• Publication year

  2009

• Venue

  International Journal of Modern Physics D

• Publication date

  2009-05-27

• Fields of study

  Physics

• Identifiers
  DOI 10.1142/S0218271809016004arXiv 0905.4483
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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