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Can information be transmitted faster than c in inflationary cosmology?

  1. Mar 22, 2009 #1
    can information be transmitted faster than c in inflationary cosmology where with a large positive cosmological constant, space is itself expanding in an exponential faster than c manner?
     
  2. jcsd
  3. Mar 22, 2009 #2

    George Jones

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    No, because, even in universes that have positive cosmological constants, local speeds are always less than the local speed of light.
     
  4. Mar 22, 2009 #3

    Dale

    Staff: Mentor

    Information cannot be transmitted along a spacelike worldline. But it is possible to have timelike or lightlike worldlines with a "coordinate velocity" greater than c even in special relativity (eg rotating reference frame)
     
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