The question of quantifying the sharpness (or unsharpness) of a quantum mechanical effect is investigated. Apart from sharpness, another property, bias, is found to be relevant for the joint measurability or coexistence of two effects. Measures of bias will be defined and examples given.
|Number of pages||18|
|Journal||Foundations of Physics|
|Publication status||Published - Jul 2009|
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- quantum measurement
- joint observable
- unsharp observable