Two roles of relativistic spin operators
Quantum Physics
2009-11-07 v2
Abstract
Operators that are associated with several important quantities, like angular momentum, play a double role: they are both generators of the symmetry group and ``observables.'' The analysis of different splittings of angular momentum into "spin" and "orbital" parts reveals the difference between these two roles. We also discuss a relation of different choices of spin observables to the violation of Bell inequalities.
Cite
@article{arxiv.quant-ph/0208074,
title = {Two roles of relativistic spin operators},
author = {Daniel R. Terno},
journal= {arXiv preprint arXiv:quant-ph/0208074},
year = {2009}
}
Comments
RevTeX 4, 4 pages A discussion on relation of different choices of spin observables to the observed violation of Bell inequalities is added, some misprints corrected and the presentation is clarified