Understanding the Physical Meaning of Wigner Rotation

elec-tric
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i have read about wigner rotation but i think i can't understand it well , i want to know the physical meaning of it .
 
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no body knows about wigner rotation ?
 
Welcome to PF!

elec-tric said:
… i want to know the physical meaning of it .

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:
 
thanx tiny-tim :D , but if you have a site or even a book or a paper about wigner rotation , please send it :D
 
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