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Gravity waves and "gravitons"

  1. Oct 6, 2015 #1

    Gal

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    If a mass bends space-time somehow and then I nudge it, the bend changes. This distortion of space-time bend is supposedly expanding at the speed of light and could be called a "gravity wave" that carries energy. Why is this wave not the distortion that creates a "graviton" like EM and photons?
     
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  3. Oct 6, 2015 #2

    bcrowell

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    Why do you phrase this in the negative?

    We presume that gravity is quantized, although we currently don't have a working theory of quantum gravity. "Graviton" is our name for the quantum of the gravitational field.
     
  4. Oct 7, 2015 #3

    Demystifier

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    Actually it is. Roughly speaking, a quantum description of gravity wave is called graviton.
     
  5. Oct 7, 2015 #4

    Gal

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    But is space-time a quantum field? Do gravitons theoretically excite this "field"?
     
  6. Oct 7, 2015 #5

    Demystifier

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    The metric of space-time can be treated as a quantum field, in which case gravitons are excitations of this field.
     
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