Angular performance measure for tighter uncertainty relations

Details Angular performance measure for tighter uncertainty relations Angular performance measure for tighter uncertainty relations

2009-10-24

arxiv.org/abs/0910.4670v2

Phys. Rev. A 81, 014103 (2010)

Physics

Quantum Physics

4 pages, 1 figures. Comments welcome

Scientific paper

10.1103/PhysRevA.81.014103

The uncertainty principle places a fundamental limit on the accuracy with which we can measure conjugate physical quantities. However, the fluctuations of these variables can be assessed in terms of different estimators. We propose a new angular performance that allows for tighter uncertainty relations for angle and angular momentum. The differences with previous bounds can be significant for particular states and indeed may be amenable to experimental measurement with the present technology.

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