Schwinger, Pegg and Barnett approaches and a relationship between angular and Cartesian quantum descriptions
- 11 February 2002
- journal article
- Published by IOP Publishing in Journal of Physics A: General Physics
- Vol. 35 (7) , 1763-1768
- https://doi.org/10.1088/0305-4470/35/7/320
Abstract
From 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 (i.e., without a classical counterpart), the usual canonical variables of position/momentum and angle/angular momentum, the latter appearing, perhaps surprisingly, as a limit of the first.Keywords
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