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B How close are we to uniting gravity and QM

  1. Feb 1, 2017 #1
    How much progression has physics made in uniting QM and gravity? Have we made any steps to unite them? have we discovered anything remotely related to it?
     
  2. jcsd
  3. Feb 1, 2017 #2
    Gravitational wave astronomy is an exciting field for quantum gravity. As they get more and more precise, we'll be able to see the exact energy spectrum released by colliding black holes and neutron stars. If gravity is quantized the same way light is, then short gravity waves should start showing us a spectrum that does not fit general relativity.
     
  4. Feb 1, 2017 #3

    strangerep

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    Imho, it's still beyond the edge of the observable universe. (I.e., measure in terms of billions of LY.) :oldfrown:

    But I'd be happy to be proven wrong within the next few decades (i.e., while I'm still around to see it). :biggrin:
     
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