Concept information
Preferred term
spin
Definition
- Spin is a conserved quantity carried by elementary particles, and thus by composite particles (hadrons) and atomic nuclei. Spin is one of two types of angular momentum in quantum mechanics, the other being orbital angular momentum. The orbital angular momentum operator is the quantum-mechanical counterpart to the classical angular momentum of orbital revolution and appears when there is periodic structure to its wavefunction as the angle varies. For photons, spin is the quantum-mechanical counterpart of the polarization of light; for electrons, the spin has no classical counterpart. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Spin_(physics))
Broader concept
In other languages
-
French
URI
http://data.loterre.fr/ark:/67375/MDL-DPCLWKR2-3
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