Large-uncertainty intelligent states for angular momentum and angle

Details Large-uncertainty intelligent states for angular momentum and angle Large-uncertainty intelligent states for angular momentum and angle

2005-06-28

arxiv.org/abs/quant-ph/0506238v2

J. Opt. B. 7 S563-S571 (2005)

Physics

Quantum Physics

20 pages, 9 figures, submitted to J. Opt. B special issue in connection with ICSSUR 2005 conference

Scientific paper

10.1088/0953-4075/39/9/C01

The equality in the uncertainty principle for linear momentum and position is obtained for states which also minimize the uncertainty product. However, in the uncertainty relation for angular momentum and angular position both sides of the inequality are state dependent and therefore the intelligent states, which satisfy the equality, do not necessarily give a minimum for the uncertainty product. In this paper, we highlight the difference between intelligent states and minimum uncertainty states by investigating a class of intelligent states which obey the equality in the angular uncertainty relation while having an arbitrarily large uncertainty product. To develop an understanding for the uncertainties of angle and angular momentum for the large-uncertainty intelligent states we compare exact solutions with analytical approximations in two limiting cases.

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