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Do photons bounce off of each other?

  1. Mar 16, 2008 #1
    What would happen if a photon moving in one direction were to meet another photon moving in a perpendicular direction? Would they behave like billiard balls and bounce off each other, would they just pass through each other, would they combine together somehow and move in some new direction, or something else?
  2. jcsd
  3. Mar 16, 2008 #2
    Photon-Photon scattering is possible but this effect is observable in fields of extreme strength.
  4. Mar 16, 2008 #3
    They would usually behave as waves and create interference patterns instead.
  5. Mar 16, 2008 #4
    They could become a particle/antiparticle pair too. But ordinarily they'd go about their merry business.
  6. Mar 16, 2008 #5


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