Positive operator valued measures covariant with respect to an Abelian group
classification
🪐 quant-ph
keywords
groupabeliancovariantoperatorpositiverespectvaluedcharacterise
read the original abstract
Given a unitary representation $U$ of an Abelian group $G$ and a subgroup $H$, we characterise the positive operator valued quotient group $G/H$ and covariant with respect to $U$.
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