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Minimum uncertainties states of angular momentum and angular position

AuthorsPegg, David T.; Barnett, Stephen M.; Zambrini, Roberta ; Franke-Arnold, Sonja; Padgett, Miles
Issue Date17-Feb-2005
PublisherInstitute of Physics Publishing
Deutsche Physikalische Gesellschaft
CitationNew Journal of Physics 7: 62 (2005)
AbstractThe states of linear momentum that satisfy the equality in the Heisenberg uncertainty principle for position and momentum, that is the intelligent states, are also the states that minimize the uncertainty product for position and momentum. The corresponding uncertainty relation for angular momentum and angular position, however, is more complicated and the intelligent states need not be the minimum uncertainty product states. In this paper, we investigate the differences between the intelligent and the minimum uncertainty product states for the angular case by means of instructive approximations, a numerical terative search and the exact solution. We find that these differences can be quite significant for particular values of angular position uncertainty and indeed may be amenable to experimental measurement with the present technology.
Description20 pages.-- Presented at the 2005 European Quantum Electronics Conference: http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=01567455
Publisher version (URL)http://dx.doi.org/10.1088/1367-2630/7/1/062
Appears in Collections:(IFISC) Artículos
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