On Constructing Informationally Complete Covariant Positive Operator-Valued Measures
On Constructing Informationally Complete Covariant Positive Operator-Valued Measures
We study a projective unitary representation of the product G=G˜×G, where G is a locally compact Abelian group and G^ is its dual consisting of characters on G. It is proven that the representation is irreducible, which allows us to define a covariant positive operator-valued measure (covariant POVM) generated by …