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Kerr-Newman solution (GR)

  1. Apr 30, 2004 #1
    I was reading Michio Kaku's book Hyperspace when I came across his statement that black holes have to have another side to be consistent. I'm curious, since Godel showed that a given energy-momentum tensor does not nessecarily produce a unique metric, why must the kerr-newman solution be the only description of a charged rotating singularity?
  2. jcsd
  3. Apr 30, 2004 #2


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    The Kerr-Newman solution is the most general stationary, vacuum (except for EM field), asymptotically flat solution. You were missing the word "stationary," which I think is very important in making the result look reasonable.
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