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Why do people insist on the graviton

  1. Mar 7, 2008 #1
    When Einstein specifically showed there was no gravitational 'force', rather a repulsion of curved space. Is there something wrong with his theory that we must throw it all out the window and replace it with another meaningless hypothetical particle scenario?
  2. jcsd
  3. Mar 7, 2008 #2


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    A graviton is a quantized gravitational wave, it needn't necessarily contradict general relativity's claim that gravity is a consequence of curved spacetime (not curved space as you said). This is discussed on Some Frequently Asked Questions About Virtual Particles:
  4. Mar 8, 2008 #3


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    Yes, it's not a quantum theory. General relativity is a classical theory about an equation called Einstein's equation that describes the relationship between the geometry of space-time and its content of matter. "Matter" is the key word here, because it's been known for a long time that matter can't be described by classical theories. If you just look closely enough, you need quantum mechanics to describe what you see. So the right-hand side of Einstein's equation is a classical description of something that definitely should be described by quantum mechanics.
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