Does an exact three-fold symmetry exist in physics?

  • #1
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Main Question or Discussion Point

An isolated electron and positron depict an exact two-fold symmetry. Are there any examples in physics of a truly triplicate symmetry? If not, what constraints are there that prevent it?
 

Answers and Replies

  • #2
3,077
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How about that for baryons composed of three identical quarks?
 
  • #3
5,428
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To be very picky, the electron/positron symmetry is an exact anti-symmetry like the anti-symmetry between E and B in EM. The spinor wave equation pair have a change of sign, or they would be symmetrical.

I've been told I'm a pedant already.
 
  • #4
550
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How about the color charges of quarks?
 
  • #5
vanesch
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Science Advisor
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cyclic rotation of x y and z axis in space ?
 

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