Extremal covariant positive operator valued measures: The case of a compact symmetry group

: Carmeli C, Heinosaari T, Pellonpaa JP, Toigo A

Publisher: AMER INST PHYSICS

: 2008

Journal of Mathematical Physics

JOURNAL OF MATHEMATICAL PHYSICS

: J MATH PHYS

: ARTN 063504

: 49

: 6

: 16

: 0022-2488

DOI: https://doi.org/10.1063/1.2940328

Given a unitary representation U of a compact group G and a transitive G-space Omega, we characterize the extremal elements of the convex set of all U-covariant positive operator valued measures. (c) 2008 American Institute of Physics.