Proof of the Fermion Superselection Rule Without the Assumption of Time—Reversal Invariance
Part of the The Scientific Papers book series (WIGNER, volume A / 3)
The superselection rule which separates states with integer angular momentum from those with halfinteger angular momentum is proved using only rotational invariance.
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- 2.This theorem is usually attributed to one of the present authors (E. P. W.), but it was probably known to others before. For a more recent proof, see V. Bargmann, J. Math. Phys. 5, 862 (1964).Google Scholar
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