superselection
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In quantum mechanics, superselection extends the concept of selection rules.
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- time of discovery or invention
- 1952-00-00
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Article
9 sectionsContents
- Formulation
- Relationship to symmetry
- Examples
- Superselection sectors
- Discrete symmetry
- Continuous symmetries
- Examples in particle physics
- Notes
- References
In quantum mechanics, superselection extends the concept of selection rules.
Superselection rules are postulated rules forbidding the preparation of quantum states that exhibit coherence between eigenstates of certain observables. It was originally introduced by Gian Carlo Wick, Arthur Wightman, and Eugene Wigner to impose additional restrictions to quantum theory beyond those of selection rules.
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