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Moving charge in gravitational field.

  1. Jun 23, 2012 #1
    An accelerated charge particle radiates. So, in the light of principle of equivalence, does a charge particle also radiate when it is in a gravitational field? Sorry if the question doesn't make any sense.
  2. jcsd
  3. Jun 23, 2012 #2
    I would say no, because "acceleration" really means "proper acceleration". A box with a rocket on the bottom is the same as a box on the Earth because they both exhibit non-zero proper acceleration. If the box and the person inside are both being acted on by a graviational field and in free-fall, you can't tell that you're accelerating.

    If the particle is following a geodesic, I don't believe it will radiate.
  4. Jun 23, 2012 #3
    we've had some good long threads about this, search the archive here at PF to read through them.
  5. Jun 24, 2012 #4
    I thought so but somehow couldn't find. :(...Would you have some time to lead to those?

    Edited to add: I found one: https://www.physicsforums.com/showthread.php?t=65767 . Any other would be appreciated.
    Last edited: Jun 24, 2012
  6. Jun 24, 2012 #5


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