Angular minimum uncertainty states with large uncertainties

Goette, Joerg B.; Radmore, Paul M.; Zambrini, Roberta; Barnett, Stephen M.

Angular minimum uncertainty states with large uncertainties

Authors

Description

The uncertainty relation for angle and angular momentum has a lower bound which depends on the form of the state. Surprisingly, this lower bound can be very large. We derive the states which have the lowest possible uncertainty product for a given uncertainty in the angle or in the angular momentum. We show that, if the given angle uncertainty is close to its maximum value, the lowest possible uncertainty product tends to infinity.
v1: 14 pages, 7 figures v2: 15 pages, 7 figures, added references to other angular momentum uncertainties, added content on large uncertainties