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Deriving GR from maximum power

  1. Aug 11, 2011 #1

    bcrowell

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    MTW has a cute argument on p. 980 that the maximum power radiated from any system is a fixed number, about 10^53 W. I came across this and filed it away as a piece of cool trivia. But it turns out that apparently you can derive the GR field equations from nothing more than the assumption that there is a maximum power across any surface:

    Jacobson, "Thermodynamics of spacetime: the Einstein equation of state," PRL 75 (1995) 1260, http://arxiv.org/abs/gr-qc/9504004

    C. Schiller has made an attempt to present this at a lower mathematical level in Motion Mountain, v. II, ch. 4: http://motionmountain.net/

    Schiller's treatment, unforunately, seems to veer wildly between different levels of sophistication, and I wasn't able to make much of it.
     
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  3. Aug 11, 2011 #2

    Ben Niehoff

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    That's really cool.
     
  4. Aug 11, 2011 #3

    atyy

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    Related: Padmanabhan, Gravity: The Inside Story, http://www.gravityresearchfoundation.org/pdf/awarded/2008/Padmanabhan_2008.pdf [Broken]
     
    Last edited by a moderator: May 5, 2017
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