Schwinger, Pegg and Barnett and a relationship between angular and Cartesian quantum descriptions
Quantum Physics
2009-11-07 v2
Abstract
From a development of an original idea due to Schwinger, it is shown that it is possible to recover, from the quantum description of a degree of freedom characterized by a finite number of states (\QTR{it}{i.e}., without classical counterpart) the usual canonical variables of position/momentum \QTR{it}{and} angle/angular momentum, relating, maybe surprisingly, the first as a limit of the later.
Cite
@article{arxiv.quant-ph/0108031,
title = {Schwinger, Pegg and Barnett and a relationship between angular and Cartesian quantum descriptions},
author = {M. Ruzzi},
journal= {arXiv preprint arXiv:quant-ph/0108031},
year = {2009}
}
Comments
7 pages, revised version, to appear on J. Phys. A: Math and Gen