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Particles traveling backwards in time

  1. Apr 6, 2009 #1
    Recently I heard that when a particle travels back in time it carries the opposite force to it travelling forward in time
    For example if an electron travels back in time then it has positive charge.
    I need to know if this is true or not and if so does if affect all types of particle such as;
    Hadrons,leptons,baryons etc
     
  2. jcsd
  3. Apr 6, 2009 #2

    DrChinese

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    More or less, yes, this is accurate. An electron going backwards in time would have a positive charge. A proton going backward in time has a negative charge. Their mass is still positive. But most of the other property (charge, parity, etc.) values would be reversed.
     
    Last edited: Apr 6, 2009
  4. Apr 6, 2009 #3
    so does this apply to the particles involved in the Casimir effect?
     
  5. Apr 6, 2009 #4

    DrChinese

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    Yes, the same basic rules apply to virtual particles.
     
  6. Apr 6, 2009 #5
    thanks i needed reassuring on it
     
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