Abstract
Spin degrees of freedom appear in a; variety of applications in quantum information theory and foundations of quantum mechanics, and usually are analyzed nonrelativistically. Two standard spin operators for massive spin-1/2 particles, the rest-frame spin and the Dirac spin operator Σ that is associated with the spin of moving particles are considered. As such, these two quantities can serve as prototypes for various alternative "spin operators".
| Original language | English |
|---|---|
| Article number | 014102 |
| Pages (from-to) | 1-4 |
| Number of pages | 4 |
| Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 67 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 2003 |
| Externally published | Yes |