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Wigner rotation

  1. Aug 17, 2009 #1
    i have read about wigner rotation but i think i can't understand it well , i want to know the physical meaning of it .
  2. jcsd
  3. Aug 18, 2009 #2
    no body knows about wigner rotation ?
  4. Aug 19, 2009 #3


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    Welcome to PF!

    Hi elec-tric! Welcome to PF! :smile:

    By "physical meaning", do you mean a geometric one?

    If you move something along the surface of a sphere without rotating it, first north then east, its position is at a slight angle to the position it would have if you moved it along the hypotenuse.

    Wigner rotation is the same thing in the "space of velocities" (or "space of momentums") … the space is curved, so parallel transport between two "points" depends on the path taken. :wink:
  5. Aug 19, 2009 #4
    thanx tiny-tim :D , but if you have a site or even a book or a paper about wigner rotation , plz send it :D
  6. Aug 20, 2009 #5


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