Do photons bounce off of each other?

  • Thread starter Usaf Moji
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  • #1
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Main Question or Discussion Point

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?
 

Answers and Replies

  • #2
Photon-Photon scattering is possible but this effect is observable in fields of extreme strength.
 
  • #3
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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?
They would usually behave as waves and create interference patterns instead.
 
  • #4
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They could become a particle/antiparticle pair too. But ordinarily they'd go about their merry business.
 
  • #5
jtbell
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