We study various optimality criteria for quantum observables. Observables are represented as covariant positive operator valued measures and we consider the case when the symmetry group is compact. Phase observables are examined as an example.
Optimal covariant measurements: the case of a compact symmetry group and phase observables
CARMELI, CLAUDIO;TOIGO, ALESSANDRO
2009-01-01
Abstract
We study various optimality criteria for quantum observables. Observables are represented as covariant positive operator valued measures and we consider the case when the symmetry group is compact. Phase observables are examined as an example.
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