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BH entropy

  1. Apr 24, 2004 #1


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  2. jcsd
  3. Apr 24, 2004 #2


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    of course! should have thought of that,
  4. Apr 24, 2004 #3


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    http://relativity.livingreviews.org/Articles/lrr-2004-4/articlesu36.html [Broken]

    this maybe of interest.
    Last edited by a moderator: May 1, 2017
  5. Apr 24, 2004 #4
  6. Apr 25, 2004 #5
    The Beckenstein-Hawking entropy essentially says that the entropy of a black hole is proportional to its horizon area (the A in A/4; note that is in natural units -- there is a G, hbar, and k floating in it). This was recently generalized by Bousso to become the holographic principle, which states that the number of degrees of freedom (information content) in a volume of space is also proportional to the surface area of a bounding "light sheet". The holographic principle shows promising links between relativity and field theory, e.g. the AdS/CFT correspondence.

    The quasinormal mode has to do with resonance modes of a black hole, if I recall correctly. Dryer has derived an interesting result for this, which involves a factor of ln(3). I can't remember specifics (I saw him speak about it at a conference last summer), but if you look up his other papers on arxiv, you'll find the appropriate references.
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